Addition Fluency to 5

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Answer Key & Explanations

Addition Fluency to 5 · Kindergarten · Worksheet 1

1. Look at the pattern: ★ ★ ★ ★ | ★ ★ ★. How many stars are there in total? Answer: 7 Solution: Count the stars in the first group: ★ ★ ★ ★ = 4 stars Count the stars in the second group: ★ ★ ★ = 3 stars Add the stars from both groups: 4 + 3 = 7 There are 7 stars in total.
   Full step-by-step solution

   Step 1: Count the stars in the first group: ★ ★ ★ ★ = 4 stars Step 2: Count the stars in the second group: ★ ★ ★ = 3 stars Step 3: Add the stars from both groups: 4 + 3 = 7 There are 7 stars in total.

2. Lily has 3 red blocks. Her friend Noah gives her 2 more blue blocks. How many blocks does Lily have now? Answer: 5 Solution: Identify how many blocks Lily starts with. Lily begins with 3 red blocks. Identify how many blocks Noah gives her.
   Full step-by-step solution

   Step 1: Identify how many blocks Lily starts with. Lily begins with 3 red blocks. Step 2: Identify how many blocks Noah gives her. Noah gives her 2 blue blocks. Step 3: Add the blocks together to find the total. 3 blocks + 2 blocks = 5 blocks. Step 4: State the final answer. Lily now has 5 blocks in total.

3. You have 3 red blocks and 2 blue blocks. How many blocks do you have in total? Answer: 5 Solution: Identify the number of red blocks. We have 3 red blocks. Identify the number of blue blocks.
   Full step-by-step solution

   Step 1: Identify the number of red blocks. We have 3 red blocks. Step 2: Identify the number of blue blocks. We have 2 blue blocks. Step 3: Add the number of red blocks and blue blocks together. Total blocks = red blocks + blue blocks Total blocks = 3 + 2 Step 4: Perform the addition. 3 + 2 = 5 Step 5: State the final answer. We have 5 blocks in total.

4. 2 + 0 = ? Answer: 2 Solution: When we add a number to zero, the number stays the same. 2 plus zero equals 2.
5. 2 + 1 = ? Answer: 3 Solution: To add 2 plus 1, start at 2 and count up 1 more: that gives us 3.
6. Look at the pattern: ★ ★ ★ ★ | ★ ★. How many stars are there in total? Answer: 6 Solution: Count the stars in the first group: ★ ★ ★ ★ = 4 stars Count the stars in the second group: ★ ★ = 2 stars Add the stars together: 4 + 2 = 6 The answer is 6.
   Full step-by-step solution

   Step 1: Count the stars in the first group: ★ ★ ★ ★ = 4 stars Step 2: Count the stars in the second group: ★ ★ = 2 stars Step 3: Add the stars together: 4 + 2 = 6 The answer is 6.

7. 1 + 0 = ? Answer: 1 Solution: When we add a number to zero, the number stays the same. 1 plus zero equals 1.
8. Isabella has 2 toy cars. Isabella gets 2 more toy cars for a birthday. How many toy cars does Isabella have now? Answer: 4 Solution: Start with 2 toy cars. Add 2 more toy cars: 2 + 2 = 4.
   Full step-by-step solution

   Step 1: Start with 2 toy cars. Step 2: Add 2 more toy cars: 2 + 2 = 4. The answer is 4 toy cars.

9. Aroha sees 2 red balloons floating up high. Then she sees 2 blue balloons floating up high too. How many balloons does Aroha see in total? Answer: 4 Solution: Count the red balloons. Aroha sees 2 red balloons. Step 2: Count the blue balloons.
   Full step-by-step solution

   Step 1: Count the red balloons. Aroha sees 2 red balloons. Step 2: Count the blue balloons. Aroha sees 2 blue balloons. Step 3: Add the two groups together: 2 + 2 = 4. Aroha sees 4 balloons in total. The answer is 4.

10. Maya has 4 colorful balloons. Her dad brings home 2 more balloons. How many balloons does Maya have now? Answer: 6 Solution: Maya starts with 4 balloons. Her dad brings 2 more balloons. To find the total, add the two amounts: 4 + 2 4 + 2 = 6 The answer is 6.
    Full step-by-step solution

    Step 1: Maya starts with 4 balloons. Step 2: Her dad brings 2 more balloons. Step 3: To find the total, add the two amounts: 4 + 2 Step 4: 4 + 2 = 6 The answer is 6.