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Worksheet: Addition or Subtraction of Tens from Two-Digit Numbers

Q1:

We can use number bonds to ten to help us find 10 more than any tens number.

If we know that 3 + 1 = 4 , we also know that 3 0 + 1 0 = 4 0 .

We have just made the numbers bigger by 10.

Use number bonds to help you find 10 more than 80.

Q2:

Find the missing label.

Number 10 More
3 13 23
  • A10
  • B10 More
  • C10 Less

Q3:

Find the picture that shows 10 less than 38.

  • A
  • B
  • C

Q4:

Find 10 less than 50. Use the base ten blocks to help you.

Q5:

Let’s think about finding 10 less.

Which picture shows 37?

  • A
  • B
  • C

Now, find 10 less than 37.

Q6:

We want to show that 10 less than 34 is 24.

How many ten rods should we take away to show this?

Q7:

Find 10 more than 37.

  • A48
  • B38
  • C47

Q8:

Fill in the blank: 1 3 + = 2 3 .

Q9:

Fill in the blank: 4 8 = 3 8 .

Q10:

Find 10 more than 89: 8 9 + 1 0 = .

  • A100
  • B90
  • C99

Q11:

Find the two-digit number and then find 10 more.

Which picture shows 26?

  • A
  • B
  • C

Now, find 10 more than 26.

Q12:

William writes the number 87 on his chart.

If he finds 10 less, what will happen in each column?

  • AThe tens will go down by 1. The ones will stay the same.
  • BThe ones will go down by 1. The tens will stay the same.

Now, find 10 less than 87. What will the new number be?

Q13:

Find 10 more than 20. Use the base ten blocks to help you.

Q14:

What number is missing?

Q15:

49 is 10 less than .

Q16:

Jennifer writes the number 63 on her chart.

If she adds 10 more, what will happen in each column?

  • AThe tens will go up by 1. The ones will stay the same.
  • BThe ones will go up by 1. The tens will stay the same.

Now, add 10 more to 63. What will the new number be?

Q17:

Which number is NOT 10 more than 32?

  • A22
  • B42

Q18:

We want to show that 10 more than 59 is 69.

How many more ten rods should we add to the picture?

Q19:

We can use number bonds to ten to help us find 10 more than any tens number.

If we know that 3 + 1 = 4 , we also know that 3 0 + 1 0 = 4 0 .

We have just made the numbers 10 times bigger.

Use number bonds to help you find 10 more than 60.

Q20:

Which number is NOT 10 less than 65?

  • A75
  • B55