Grade 1
Course ContentMultiplication (Repeated Addition)
Habari Mwanafunzi! Let's Learn a Math Superpower!
Have you ever wanted a faster way to count things? Imagine you have three friends, and you give each of them two sweet mandazis. To find the total, you could count them one by one, or add them up like this: 2 + 2 + 2. But what if there was a faster, superhero way? Well, there is! It's called Multiplication, and today, you will become a multiplication champion!
What is This "Repeated Addition"?
Repeated addition is simply adding the same number over and over again. Let's go back to our mandazi story.
Story Time: Juma goes to the local duka to buy mandazis for his two friends and himself. He buys 3 bags, and in each bag, there are 2 delicious mandazis. How many mandazis does he have in total?
To solve this, we can add the number of mandazis in each bag:
Bag 1 + Bag 2 + Bag 3
2 + 2 + 2 = 6 mandazis
We added the number '2' three times. This is repeated addition!
_ _ _
/ \ / \ / \
( O O) ( O O) ( O O) <-- Let's pretend these are the bags with mandazis!
Meet the Multiplication Sign (×) - Our Shortcut!
Doing long additions can take time. So, mathematicians created a special sign to make it faster. This sign is the multiplication sign: ×.
The × sign simply means "groups of" or "times".
So, instead of writing 2 + 2 + 2, we can say we have 3 groups of 2.
In math, we write this as:
3 × 2 = 6
Wow! See how much shorter and faster that is? Both ways give you the same answer, but multiplication is the super-fast way!
Image Suggestion: A vibrant cartoon image of a friendly, smiling multiplication sign (×) wearing a red superhero cape and flying over a math book. The background is a colourful Kenyan classroom with happy students.
Let's Practice with Examples from Home!
Example 1: Counting Kuku Legs!
Imagine you are in the shamba and you see 4 chickens (kuku). Each chicken has 2 legs. How many legs are there in total?
- The Long Way (Repeated Addition): We add the legs of all 4 chickens.
2 + 2 + 2 + 2 = 8 legs
- The Super-Fast Way (Multiplication): We have 4 groups of 2 legs.
4 × 2 = 8 legs
See? You get the same answer! Hongera!
Image Suggestion: A colourful storybook illustration of a cheerful Kenyan child in a green shamba, pointing and counting the legs of four happy, cartoonish chickens pecking at the ground.
Example 2: Wheels on Boda Bodas
Three boda bodas are parked outside. We know each boda boda has 2 wheels. How many wheels are there altogether?
o-o o-o o-o
Boda Boda 1 Boda Boda 2 Boda Boda 3
- Repeated Addition: 2 wheels + 2 wheels + 2 wheels
2 + 2 + 2 = 6 wheels
- Multiplication: 3 groups of 2 wheels.
3 × 2 = 6 wheels
Excellent work! You are getting so good at this!
Your Turn to be a Math Champion!
Now, grab a pencil and paper and try to solve this one. Remember to write it both ways!
Challenge: Fatuma has 5 boxes of pencils. Each box has 3 pencils inside. How many pencils does Fatuma have in total?
Step 1: Write the repeated addition.
(Hint: You will add the number '3' five times!)
Step 2: Write the multiplication sentence.
(Hint: How many groups? How many in each group?)
Take your time... You can do it!
What We Learned Today
Let's remember the most important things from our lesson:
- Multiplication is a fast and easy way to add the same number again and again.
- The sign × means "groups of" or "times".
- The answer you get from repeated addition is the same as the answer you get from multiplication.
You have learned a new math superpower today! Keep looking for groups of things around you—in the classroom, at the market, or at home. The more you practice, the easier it will become. Good job, math champion!
Habari Mwanafunzi Mwerevu! Let's Learn a Math Superpower!
Hello, clever student! Have you ever had to add the same number over and over again? Maybe you were counting the legs on three cows (4 legs + 4 legs + 4 legs) or counting how many mandazi are on two plates if each plate has 5 mandazi (5 + 5). It can take a long time, sawa?
Today, we are going to learn a mathematical superpower called Multiplication! It's a fun and fast shortcut for adding the same number many times. We can also call it Repeated Addition.
What is Multiplication?
Multiplication is simply a quick way of adding. Instead of writing a long sum, we use a special sign called the "times" sign (×). It helps us find the total number of items in equal groups.
Let's look at an example with something we see at the market!
Story Time: Mama Biko's Sukuma Wiki
Mama Biko is at the market selling beautiful green sukuma wiki. She arranges them in small bundles. You want to buy 3 bundles, and each bundle has 4 leaves. How many leaves of sukuma wiki will you have in total?
We can find the answer by adding:
4 + 4 + 4 = 12
But here comes our superpower! We can say we have 3 groups of 4 leaves. In math, we write this as:
3 × 4 = 12
We read this as "Three times four equals twelve." See? It's the same answer, but much faster to write! Both ways tell us you have 12 leaves of sukuma wiki.
Let's draw it to see it clearly:
Bundle 1 Bundle 2 Bundle 3
O O O O O O O O O O O O
(4) (4) (4)
Total = 4 + 4 + 4 = 12
OR
3 bundles × 4 leaves = 12
Image Suggestion: A vibrant, colourful digital illustration of a Kenyan market scene. A friendly woman (Mama Biko) is at her stall, which is full of fresh green sukuma wiki tied in neat bundles. A smiling child is pointing at three bundles, ready to buy them. The style should be cheerful and cartoonish, appealing to young children.
Let's Play! Groups of Friends
Imagine you and your friends are playing a game of 'Kati'. You decide to make 4 teams, and each team has 2 children. How many children are playing in total?
We have 4 groups, and each group has 2 children.
As Repeated Addition:
2 + 2 + 2 + 2 = 8
As Multiplication:
4 × 2 = 8
So, there are 8 children playing the game. Vizuri sana!
Here is what it looks like in a drawing:
Team 1 Team 2 Team 3 Team 4
(^_^) (^_^) (^_^) (^_^)
(^_^) (^_^) (^_^) (^_^)
(2) (2) (2) (2)
Thinking with Money: Counting Shillings!
Money is a great way to practice multiplication. Let's say your guardian gives you a 5 shilling coin every day for 3 days to buy a sweet.
How much money do you have after 3 days?
- Day 1: 5 shillings
- Day 2: 5 shillings
- Day 3: 5 shillings
Let's add it up:
5 + 5 + 5 = 15
Now, let's use our multiplication superpower! We have 3 groups of 5 shillings.
3 × 5 = 15
You will have 15 shillings in total. That's enough for a very nice sweet!
Image Suggestion: A close-up, cheerful illustration of a child's hand holding three shiny Kenyan 5-shilling coins. The background is slightly blurred and colourful. The coins should be clearly identifiable.
Key Things to Remember!
When you see a multiplication problem like 4 × 6, this is what it means:
- The first number (4) tells you HOW MANY GROUPS you have.
- The × sign means "groups of" or "times".
- The second number (6) tells you HOW MANY ARE IN EACH GROUP.
So, 4 × 6 is the same as 6 + 6 + 6 + 6. Both equal 24!
Your Turn to be a Math Champion!
Now, try to solve these by yourself. You can draw them out, then write the repeated addition, and finally, the multiplication sentence. Sawa?
- There are 2 boda bodas. Each boda boda has 2 wheels. How many wheels are there in total?
(Hint: 2 groups of 2) - You see 5 birds on a wire. Each bird has 2 legs. How many bird legs are there in total?
(Hint: 5 groups of 2) - A plate has 3 delicious sausages. If you have 3 such plates, how many sausages do you have in total?
(Hint: 3 groups of 3)
You are doing an amazing job! Remember, multiplication is your friend and a superpower that makes counting big numbers easy and fun. Keep practicing, and soon you will be a multiplication master!
Umefanya vizuri sana! (You have done very well!)
Jambo Mwanafunzi! Let's Go on a Multiplication Adventure!
Habari yako? I hope you are ready for some fun with numbers! Today, we are going to learn a super-fast way to add. It’s like having a superpower for mathematics! This superpower is called Multiplication.
Imagine you have 3 plates, and your mum puts 2 delicious mandazis on each plate. How many mandazis are there in total? You could count them one by one, or you could add them like this: 2 + 2 + 2 = 6. But what if there were 10 plates? That would be a lot of adding! Multiplication makes it much easier.
What is Multiplication? It's Just Repeated Addition!
That's the big secret! Multiplication is just a shortcut for adding the same number over and over again. When you see the special sign ×, it means "groups of".
So, for our mandazi problem, we have 3 groups of 2.
We can write this as a multiplication problem:
3 × 2 = 6
This is much faster than writing 2 + 2 + 2 = 6, isn't it? Hongera! You just did multiplication!
Image Suggestion: A vibrant, colourful cartoon illustration of a Kenyan kitchen table. There are three blue plates on the table, and each plate has two golden-brown, perfectly cooked mandazis. A happy child is looking at the plates with excitement. The style should be cheerful and educational for a young child.
Let's Look at a Local Example: Boda Bodas!
Have you seen boda bodas on the road? Of course! They are everywhere. Let's use them to learn.
You are standing by the road and you see 4 boda bodas waiting for customers. Each boda boda has 2 wheels. How many wheels are there altogether?
We are adding the number 2 (for the wheels) 4 times (for the 4 boda bodas).
As Repeated Addition:
2 + 2 + 2 + 2 = 8
As Multiplication (4 groups of 2):
4 × 2 = 8
So, there are 8 wheels in total! Kazi nzuri! (Good work!)
Here is what it looks like:
Boda Boda 1 Boda Boda 2 Boda Boda 3 Boda Boda 4
o-o o-o o-o o-o
(2 wheels) (2 wheels) (2 wheels) (2 wheels)
Another Example: Buying Sukuma Wiki at the Soko!
Let's go to the market (soko) with Mama. She needs to buy sukuma wiki for supper.
Mama buys 3 bunches of sukuma wiki. The seller tells her that each bunch has 5 green leaves. How many leaves of sukuma wiki does Mama have in total?
We have 3 groups of 5.
As Repeated Addition:
5 + 5 + 5 = 15
As Multiplication:
3 × 5 = 15
Mama has 15 leaves of sukuma wiki! That will make a very nice meal.
Bunch 1 Bunch 2 Bunch 3
((\ /)) ((\ /)) ((\ /))
((\ /)) ((\ /)) ((\ /))
((\ /)) ((\ /)) ((\ /))
((\ /)) ((\ /)) ((\ /))
((\ /)) ((\ /)) ((\ /))
(5 leaves) (5 leaves) (5 leaves)
Image Suggestion: A brightly lit, bustling Kenyan open-air market (soko). A friendly woman (Mama) is buying vegetables from a smiling vendor. In the foreground, there are 3 vibrant green bunches of sukuma wiki (kale), clearly showing about 5 leaves each. The style should be a warm, friendly cartoon for children.
Let's Practice Together! (Mazoezi)
Now it's your turn to be the hero! Let's solve a problem about our famous animals.
You are on a safari in the Maasai Mara and you see 2 tall giraffes. Wow! You notice that each giraffe has 4 long legs. How many giraffe legs do you see in total?
How many groups do we have? We have 2 giraffes, so that's 2 groups.
How many are in each group? Each giraffe has 4 legs.
Step 1: Write it as repeated addition.
4 + 4 = ?
Step 2: Write it as multiplication.
2 × 4 = ?
What is the answer? That's right, it's 8! There are 8 giraffe legs in total.
Kumbuka Hii! (Remember This!)
Wow, you have learned so much today! Let's remember the most important things.
- Multiplication is a fast way to add the same number again and again.
- The sign × means "groups of".
- To solve a multiplication problem, you can always use repeated addition to find the answer. For example, 5 × 3 is the same as 3 + 3 + 3 + 3 + 3.
You did an amazing job today, mwanafunzi! Keep looking for groups of things around you—in your home, at school, or outside. The more you practice, the easier it will become. Kazi nzuri sana!
Pro Tip
Take your own short notes while going through the topics.