Math Grade K-1

Tens and Ones: Building Two-Digit Numbers

Build, count, and write two-digit numbers

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Build, count, and write two-digit numbers

Math - Grade K-1

Instructions: Read each problem carefully. Use tens rods, ones cubes, drawings, or numbers to help you. Show your work in the space provided.
  1. 1
    One ten rod and four ones cubes.

    There is 1 ten and 4 ones. Write the two-digit number.

  2. 2
    Two ten rods and three ones cubes.

    There are 2 tens and 3 ones. Write the two-digit number.

  3. 3
    One ten rod and eight ones cubes.

    Write how many tens and ones are in the number 18.

  4. 4
    Three ten rods and no ones cubes.

    There are 3 tens and 0 ones. Write the number.

  5. 5
    Two base-ten block groups: two tens with five ones, and five tens with two ones.

    Circle the group that shows 25: 2 tens and 5 ones, or 5 tens and 2 ones.

  6. 6
    One ten rod and six ones cubes.

    Draw base ten blocks to show the number 16.

  7. 7
    Four ten rods and seven ones cubes.

    There are 4 tens and 7 ones. Write the two-digit number.

  8. 8
    Three ten rods and two ones cubes.

    Write how many tens and ones are in the number 32.

  9. 9
    Five ten rods and six ones cubes.

    Fill in the blank: 5 tens and 6 ones make ____.

  10. 10
    Four ten rods and one ones cube.

    Build 41 using tens and ones. Write the number of tens and ones.

  11. 11
    Two ten rods and eight ones cubes.

    Count the blocks: 2 tens and 8 ones. Write the number.

  12. 12
    Six ten rods and two ones cubes.

    Which number has 6 tens and 2 ones: 26 or 62?

  13. 13
    Three ten rods and five ones cubes.

    Draw a number that has 3 tens and 5 ones. Then write the number.

  14. 14
    Seven ten rods and four ones cubes.

    A number has 7 in the tens place and 4 in the ones place. Write the number.

  15. 15
    Nine ten rods and one ones cube.

    Look at the blocks: 9 tens and 1 one. Write the number and explain what the digits mean.

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