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Subtract Multiples of 10

Grade 1 · Mathematics · Worksheet 2

  1. There are 90 crayons in a box. If 40 crayons are taken out, how many crayons are left in the box? Answer: ______________
  2. Emma had 90 colorful beads for her necklace project. She used 40 beads to make a necklace for her mom. How many beads does Emma have left? Answer: ______________
  3. There are 7 rows of chairs in the classroom. Each row has 10 chairs. If 3 rows of chairs are taken away, how many chairs are left?
    Answer: ______________
  4. 30 - 30 = ? Answer: ______________
  5. Hana has 60 toy cars arranged in rows on a shelf. Each row has 10 cars. She gives away 2 rows of cars to her cousin. How many toy cars does Hana have left on the shelf?
    Answer: ______________
  6. Matiu had 90 stickers. Then Matiu gave 30 stickers to a friend. How many stickers does Matiu have now? Answer: ______________
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Answer Key & Explanations

Subtract Multiples of 10 · Grade 1 · Worksheet 2

  1. There are 90 crayons in a box. If 40 crayons are taken out, how many crayons are left in the box? Answer: 50 Solution: Start with 90 crayons in the box Remove 40 crayons from the box Calculate 90 - 40 90 - 40 = 50 The answer is 50.
    Full step-by-step solution

    Step 1: Start with 90 crayons in the box Step 2: Remove 40 crayons from the box Step 3: Calculate 90 - 40 Step 4: 90 - 40 = 50 The answer is 50.

  2. Emma had 90 colorful beads for her necklace project. She used 40 beads to make a necklace for her mom. How many beads does Emma have left? Answer: 50 Solution: Emma started with 90 beads She used 40 beads for the necklace Subtract the beads she used from what she started with: 90 - 40 90 - 40 = 50 Emma has 50 beads left.
    Full step-by-step solution

    Step 1: Emma started with 90 beads Step 2: She used 40 beads for the necklace Step 3: Subtract the beads she used from what she started with: 90 - 40 Step 4: 90 - 40 = 50 Emma has 50 beads left.

  3. There are 7 rows of chairs in the classroom. Each row has 10 chairs. If 3 rows of chairs are taken away, how many chairs are left? Answer: 40 Solution: Find the total number of chairs at the start. There are 7 rows, and each row has 10 chairs. So, total chairs = 7 × 10 = 70 chairs.
    Full step-by-step solution

    Step 1: Find the total number of chairs at the start. There are 7 rows, and each row has 10 chairs. So, total chairs = 7 × 10 = 70 chairs. Step 2: Determine how many chairs are taken away. 3 rows are taken away, and each row has 10 chairs. So, chairs removed = 3 × 10 = 30 chairs. Step 3: Subtract the removed chairs from the total. Chairs left = total chairs − chairs removed Chairs left = 70 − 30 = 40 chairs. Final answer: 40 chairs.

  4. 30 - 30 = ? Answer: 0 Solution: 30 - 30 = 0. Subtract the tens: 3 - 3 = 0.
  5. Hana has 60 toy cars arranged in rows on a shelf. Each row has 10 cars. She gives away 2 rows of cars to her cousin. How many toy cars does Hana have left on the shelf? Answer: 40 Solution: Hana starts with 60 toy cars in rows of 10, so there are 60 ÷ 10 = 6 rows of cars. Step 2: She gives away 2 rows, so 6 rows − 2 rows = 4 rows remain. Step 3: Each row has 10 cars, so 4 rows × 10 cars = 40 cars left.
    Full step-by-step solution

    Step 1: Hana starts with 60 toy cars in rows of 10, so there are 60 ÷ 10 = 6 rows of cars. Step 2: She gives away 2 rows, so 6 rows − 2 rows = 4 rows remain. Step 3: Each row has 10 cars, so 4 rows × 10 cars = 40 cars left. The answer is 40.

  6. Matiu had 90 stickers. Then Matiu gave 30 stickers to a friend. How many stickers does Matiu have now? Answer: 60 Solution: Start with 90 stickers. Subtract the 30 stickers given away: 90 - 30 = 60. Matiu has 60 stickers now.
    Full step-by-step solution

    Step 1: Start with 90 stickers. Step 2: Subtract the 30 stickers given away: 90 - 30 = 60. Matiu has 60 stickers now.