Decompose Numbers to 5

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Answer Key & Explanations

Decompose Numbers to 5 · Kindergarten · Worksheet 1

1. 0 = ? + 0 Answer: 0 Solution: Since 0 + 0 = 0, we know that 0 = 0 + 0.
2. Kai has 3 cookies. Kai eats 2 of them. How many cookies are left? Answer: 1 Solution: Kai starts with 3 cookies. Kai eats 2 cookies. Subtract the cookies eaten from the starting number: 3 - 2 = 1.
   Full step-by-step solution

   Step 1: Kai starts with 3 cookies. Step 2: Kai eats 2 cookies. Step 3: Subtract the cookies eaten from the starting number: 3 - 2 = 1. There are 1 cookies left.

3. Emma has 5 stickers. She gives 2 stickers to her friend Sam. How many stickers does Emma have now? Answer: 3 Solution: Emma starts with 5 stickers. She gives 2 stickers to Sam. Subtract the stickers she gave away: 5 - 2 5 - 2 = 3 Emma has 3 stickers left.
   Full step-by-step solution

   Step 1: Emma starts with 5 stickers. Step 2: She gives 2 stickers to Sam. Step 3: Subtract the stickers she gave away: 5 - 2 Step 4: 5 - 2 = 3 Emma has 3 stickers left.

4. Look at the pattern: 🍎 🍎 🍎 | 🍎 🍎. If there are 5 apples total, how many apples are in the second group? Answer: 2 Solution: We know there are 5 apples total. The first group has 3 apples (🍎 🍎 🍎). To find how many are in the second group, we take the total apples and subtract the apples in the first group: 5 - 3 = 2.
   Full step-by-step solution

   Step 1: We know there are 5 apples total. Step 2: The first group has 3 apples (🍎 🍎 🍎). Step 3: To find how many are in the second group, we take the total apples and subtract the apples in the first group: 5 - 3 = 2. Step 4: So, there are 2 apples in the second group. The answer is 2.

5. Look at the squares: □ □ □ □ | □ □ □. There are 7 squares in total. How many squares are in the second group? Answer: 3 Solution: The total number of squares is 7. The first group has 4 squares (□ □ □ □). To find the number in the second group, subtract the first group from the total: 7 - 4 = 3.
   Full step-by-step solution

   Step 1: The total number of squares is 7. Step 2: The first group has 4 squares (□ □ □ □). Step 3: To find the number in the second group, subtract the first group from the total: 7 - 4 = 3. Step 4: So, the second group has 3 squares. The answer is 3.

6. You have 5 toy cars. 3 are red and the rest are blue. How many blue cars are there? Answer: 2 Solution: We know there are 5 toy cars in total. 3 of them are red. The rest are blue.
   Full step-by-step solution

   Step 1: Understand the problem. We know there are 5 toy cars in total. 3 of them are red. The rest are blue. Step 2: Find how many are blue. Since the total is 5 and 3 are red, the number of blue cars is: Total cars − Red cars = Blue cars Step 3: Do the calculation. 5 − 3 = 2 Step 4: State the answer. There are 2 blue cars.

7. Look at the pattern: 🍎 🍎 🍎 | 🍎 🍎. How many apples are there in total? Answer: 5 Solution: Count the apples in the first group: 🍎 🍎 🍎 = 3 apples Count the apples in the second group: 🍎 🍎 = 2 apples Add the apples from both groups: 3 + 2 = 5 There are 5 apples in total.
   Full step-by-step solution

   Step 1: Count the apples in the first group: 🍎 🍎 🍎 = 3 apples Step 2: Count the apples in the second group: 🍎 🍎 = 2 apples Step 3: Add the apples from both groups: 3 + 2 = 5 There are 5 apples in total.

8. 5 = 4 + ? Answer: 1 Solution: We know that 5 = 4 + ? Think about what number added to 4 makes 5 4 + 1 = 5 So the missing number is 1 The answer is 1.
   Full step-by-step solution

   Step 1: We know that 5 = 4 + ? Step 2: Think about what number added to 4 makes 5 Step 3: 4 + 1 = 5 Step 4: So the missing number is 1 The answer is 1.

9. Mere has 5 cookies. Mere eats 1 of them. How many cookies are left? Answer: 4 Solution: Mere starts with 5 cookies. Mere eats 1 cookies. Subtract the cookies eaten from the starting number: 5 - 1 = 4.
   Full step-by-step solution

   Step 1: Mere starts with 5 cookies. Step 2: Mere eats 1 cookies. Step 3: Subtract the cookies eaten from the starting number: 5 - 1 = 4. There are 4 cookies left.

10. Lily has 4 red blocks and 1 blue block. How many blocks does Lily have in total? Answer: 5 Solution: Identify what is given in the problem. Lily has 4 red blocks and 1 blue block. Understand what is being asked.
    Full step-by-step solution

    Step 1: Identify what is given in the problem. Lily has 4 red blocks and 1 blue block. Step 2: Understand what is being asked. We need to find the total number of blocks. Step 3: Add the number of red blocks and blue blocks together. Number of red blocks = 4 Number of blue blocks = 1 Total = 4 + 1 Step 4: Perform the addition. 4 + 1 = 5 Step 5: State the final answer. Lily has 5 blocks in total.