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Grade 6 Math — Whole numbers

Use the order, identity, grouping and splitting properties of whole numbers to make arithmetic easier.

Name: ________________________

Before you start

Move along the whole numbers. Notice that each one has a next one, and that only zero has nothing before it.

0123456789101112

The line stops at 0 on the left because that is where the whole numbers start — but it never has to stop on the right.

  1. 1.Match each calculation to its answer.

    • 25 × 4
    • 25 + 4
    • 25 - 4
    • 100 ÷ 4
    • 4 × 4
    • 16
    • 21
    • 29
    • 25
    • 100

  2. 2.8 × 106 = ?

  3. 3.Which pair gives the same answer both ways round?

    • a) 9 + 4 and 4 + 9
    • b) 9 ÷ 4 and 4 ÷ 9
    • c) 9 - 4 and 4 + 9
    • d) 9 - 4 and 4 - 9

  4. 4.Work out each one, then sort it by whether the answer is a whole number. (The whole numbers are 0, 1, 2, 3, …)

    Groups: Is a whole number · Is not a whole number

    • 12 ÷ 4
    • 3 - 8
    • 7 - 7
    • 9 ÷ 2
    • 12 ÷ 5
    • 6 × 0

  5. 5.Which of these is NOT a whole number? (The whole numbers are 0, 1, 2, 3, …)

    • a) 0
    • b) -4
    • c) 206
    • d) 17

  6. 6.What is the successor of 6099?

  7. 7.7 × 98 = ?

  8. 8.37 + 65 + 63 = ?

Answer key — Grade 6 Math — Whole numbers

  1. 1. 25 × 4 → 100; 25 + 4 → 29; 25 - 4 → 21; 100 ÷ 4 → 25; 4 × 4 → 16
  2. 2. 848
  3. 3. a) 9 + 4 and 4 + 9
  4. 4. 12 ÷ 4 → Is a whole number; 12 ÷ 5 → Is not a whole number; 7 - 7 → Is a whole number; 3 - 8 → Is not a whole number; 6 × 0 → Is a whole number; 9 ÷ 2 → Is not a whole number
  5. 5. b) -4
  6. 6. 6100
  7. 7. 686
  8. 8. 165