GradeMap

Grade 2 · Math · Unit 1 of 10

Tens & Ones

Build numbers to 100

What your child practises

Seeing 47 as 4 tens and 7 ones. This place-value idea underpins all Grade 2 adding and subtracting.

BC Curriculum learning standard: Number concepts to 100

Sample questions

A taste of this unit. In the app, questions change every time and get easier or harder to match your child.

  1. Question 1

    In 29, what is the 2 worth?

    29

    • 90
    • 20
    • 2
    Show answer

    20

    Hint: The 2 is in the tens place, so it means 2 tens. That's 20.

  2. Question 2

    Build the number 27.

    Build it with tens rods and ones cubes.

    Show answer

    27

    Hint: 27 is 2 tens and 7 ones.

  3. Question 3

    Build the number 62.

    Build it with tens rods and ones cubes.

    Show answer

    62

    Hint: 62 is 6 tens and 2 ones.

  4. Question 4

    What number do the blocks show?

    • 19
    • 20
    • 23
    Show answer

    19

    Hint: Count the tens: 1 tens is 10. Then add 9 ones to get 19.

  5. Question 5

    In 76, what is the 7 worth?

    76

    • 70
    • 7
    • 60
    Show answer

    70

    Hint: The 7 is in the tens place, so it means 7 tens. That's 70.

  6. Question 6

    What number do the blocks show?

    • 40
    • 46
    • 50
    Show answer

    46

    Hint: Count the tens: 4 tens is 40. Then add 6 ones to get 46.

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