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Add Three Numbers

Grade 1 · Mathematics · Worksheet 2

  1. 8 + 2 + 5 = ? Answer: ______________
  2. There are 4 red apples in a row, 3 green apples in the next row, and 2 yellow apples in the last row. How many apples are there in all? Answer: ______________
  3. Emma has 6 stickers. Her friend Noah gives her 4 more stickers. Then Emma's teacher gives her 3 more stickers. How many stickers does Emma have in total? Answer: ______________
  4. 6 + 1 + 1 = ? Answer: ______________
  5. 6 + 1 + 6 = ? Answer: ______________
  6. Mere has 4 red balloons, 2 blue balloons, and 6 green balloons. How many balloons does Mere have in total? Answer: ______________
  7. Tane sees three groups of stars drawn on a card. The first group has 9 stars, the second group has 8 stars, and the third group has 2 stars. How many stars are there in all? Answer: ______________
  8. Emma has 3 red crayons, 5 blue crayons, and 7 green crayons. How many crayons does Emma have in all? Answer: ______________
  9. Hana has 7 red balloons. Matiu gives her 4 blue balloons. Then Mere brings her 6 yellow balloons. How many balloons does Hana have in total? Answer: ______________
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Answer Key & Explanations

Add Three Numbers · Grade 1 · Worksheet 2

  1. 8 + 2 + 5 = ? Answer: 15 Solution: Add the first two numbers: 8 + 2 = 10 Add the third number to the result: 10 + 5 = 15 The answer is 15.
    Full step-by-step solution

    Step 1: Add the first two numbers: 8 + 2 = 10 Step 2: Add the third number to the result: 10 + 5 = 15 The answer is 15.

  2. There are 4 red apples in a row, 3 green apples in the next row, and 2 yellow apples in the last row. How many apples are there in all? Answer: 9 Solution: Identify the number of apples in each row. - First row: 4 red apples. - Second row: 3 green apples.
    Full step-by-step solution

    Step 1: Identify the number of apples in each row. - First row: 4 red apples. - Second row: 3 green apples. - Third row: 2 yellow apples. Step 2: Add the apples from all rows together. Start with the first row: 4 apples. Add the second row: 4 + 3 = 7 apples. Add the third row: 7 + 2 = 9 apples. Step 3: State the final total. There are 9 apples in all.

  3. Emma has 6 stickers. Her friend Noah gives her 4 more stickers. Then Emma's teacher gives her 3 more stickers. How many stickers does Emma have in total? Answer: 13 Solution: Emma starts with 6 stickers Noah gives her 4 more stickers: 6 + 4 = 10 Her teacher gives her 3 more stickers: 10 + 3 = 13 The answer is 13.
    Full step-by-step solution

    Step 1: Emma starts with 6 stickers Step 2: Noah gives her 4 more stickers: 6 + 4 = 10 Step 3: Her teacher gives her 3 more stickers: 10 + 3 = 13 The answer is 13.

  4. 6 + 1 + 1 = ? Answer: 8 Solution: Add the first two numbers: 6 + 1 = 7 Add the third number to the result: 7 + 1 = 8 The answer is 8.
    Full step-by-step solution

    Step 1: Add the first two numbers: 6 + 1 = 7 Step 2: Add the third number to the result: 7 + 1 = 8 The answer is 8.

  5. 6 + 1 + 6 = ? Answer: 13 Solution: Add the first two numbers: 6 + 1 = 7 Add the third number to the result: 7 + 6 = 13 The answer is 13.
    Full step-by-step solution

    Step 1: Add the first two numbers: 6 + 1 = 7 Step 2: Add the third number to the result: 7 + 6 = 13 The answer is 13.

  6. Mere has 4 red balloons, 2 blue balloons, and 6 green balloons. How many balloons does Mere have in total? Answer: 12 Solution: Start with the red balloons: 4. Add the blue balloons: 4 + 2 = 6. Add the green balloons: 6 + 6 = 12.
    Full step-by-step solution

    Step 1: Start with the red balloons: 4. Step 2: Add the blue balloons: 4 + 2 = 6. Step 3: Add the green balloons: 6 + 6 = 12. Mere has 12 balloons in total. The answer is 12.

  7. Tane sees three groups of stars drawn on a card. The first group has 9 stars, the second group has 8 stars, and the third group has 2 stars. How many stars are there in all? Answer: 19 Solution: Identify the number of stars in each group: 9, 8, and 2. Add the first two groups: 9 + 8 = 17. Add the third group: 17 + 2 = 19.
    Full step-by-step solution

    Step 1: Identify the number of stars in each group: 9, 8, and 2. Step 2: Add the first two groups: 9 + 8 = 17. Step 3: Add the third group: 17 + 2 = 19. The total number of stars is 19.

  8. Emma has 3 red crayons, 5 blue crayons, and 7 green crayons. How many crayons does Emma have in all? Answer: 15 Solution: Emma has 3 red crayons. She also has 5 blue crayons. Add them: 3 + 5 = 8.
    Full step-by-step solution

    Step 1: Emma has 3 red crayons. Step 2: She also has 5 blue crayons. Add them: 3 + 5 = 8. Step 3: She also has 7 green crayons. Add that to the total: 8 + 7 = 15. Emma has 15 crayons in all. The answer is 15.

  9. Hana has 7 red balloons. Matiu gives her 4 blue balloons. Then Mere brings her 6 yellow balloons. How many balloons does Hana have in total? Answer: 17 Solution: Start with Hana's 7 red balloons. Add the 4 blue balloons from Matiu: 7 + 4 = 11. Add the 6 yellow balloons from Mere: 11 + 6 = 17.
    Full step-by-step solution

    Step 1: Start with Hana's 7 red balloons. Step 2: Add the 4 blue balloons from Matiu: 7 + 4 = 11. Step 3: Add the 6 yellow balloons from Mere: 11 + 6 = 17. Hana has 17 balloons in total.