Lesson Worksheet: Adding Tens or Ones on a Hundred Chart Mathematics • 1st Grade

In this worksheet, we will practice adding either tens or ones to a number using a hundred chart.

Q1:

Liam is counting in tens using a hundred square. He starts on 34 and moves down 3 rows.

Which number will he end on?

Now, find 10 more than the number he ended on.

Q2:

Use the hundred chart to find the sum: 24+50=.

Q3:

Benjamin knows how to add tens using a hundred chart.

Use the hundred chart to find the following sums.

41+20

27+60

35+40

Q4:

A class was asked to add 40 to 51.

Who is correct?

  • A
  • B
  • C

Q5:

Find the sum of 14+5.

Start at 14 and count on 5. Use the 100 square to help you.

Q6:

Find the sum of 67+2. Use the 100 square to help you.

Q7:

Find the sum of 33+6.

Start at 33 and count on 6. Use the 100 square to help you.

Q8:

Fady read fifteen books. Then, he read five more. Using the chart to count, find the total number of books Fady read.

11121314151617181920
21222324252627282930

Q9:

Anthony and Madison were asked to add 53+4 using a hundred chart.

This is what Anthony thinks:

And this is what Madison thinks:

Who is correct?

  • AAnthony
  • BMadison

Q10:

Find 23+5 using the hundred chart.

  • A29
  • B73
  • C28

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