Lesson Worksheet: Adding Tens Mathematics • 1st Grade

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In this worksheet, we will practice adding a multiple of ten to a multiple of ten and model this with place value equipment.

Q1:

Find the two numbers from 10, 20, 60, and 0 which add up to 30.

  • A60,20
  • B10,20
  • C60,0
  • D10,0

Q2:

Which of the following numbers add up to 60?

  • A30, 40
  • B30, 20
  • C40, 20
  • D50, 20
  • E40, 40

Q3:

Complete the following: 4+3=, 4+3=tenstens, 40+30=.

  • A7, 7 tens, 70
  • B3, 3 tens, 10
  • C3, 3 tens, 30
  • D4, 4 tens, 40

Q4:

Write the missing number: 10+=50.

Q5:

Add to find the total.

Hint: Think about tens and ones. Use base ten blocks to help you.

3+6=.

30+60=.

Q6:

Add to find the total.

7+2=.

70+20=.

Q7:

Isabella is adding tens.

Find the missing numbers.

3 tens plus 4 tens is tens.

30+40=.

Q8:

Find the missing values in the figure below.

  • A60, 10, 50
  • B20, 10, 50
  • C70, 20, 60
  • D70, 10, 50

Q9:

Complete the following: 20+40+0=+0=.

  • A20, 60
  • B40, 60
  • C60, 40
  • D60, 60

Q10:

Complete the figure below.

  • A50, 70, 80
  • B80, 70, 80
  • C70, 70, 80
  • D90, 70, 70

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