Worksheet: Estimating Quotients Using Compatible Numbers

In this worksheet, we will practice estimating quotients using rounding and compatible numbers.

Q1:

We can use multiples of 5 to estimate the answer to 8 2 ÷ 5 .

Number 13 14 15 16 17
Number × 5 65 70

Think about the missing numbers in the table to answer the questions.

82 is closest to × 5 .

So, 8 2 ÷ 5 is about .

Q2:

Liam is using facts he knows to estimate 3 4 7 ÷ 6 .

What is 3 6 0 ÷ 6 ?

Pick the number which is closest to 3 4 7 ÷ 6 .

  • A60
  • B45
  • C72
  • D6
  • E50

Q3:

We can use facts we know to estimate quotients.

Pick the division fact that would give you the best estimate of 4 8 1 2 ÷ 7 .

  • A 5 6 0 0 ÷ 7
  • B 4 2 0 0 ÷ 7
  • C 6 3 0 0 ÷ 7
  • D 4 9 0 0 ÷ 7
  • E 3 5 0 0 ÷ 7

Solve the division from the first part to finish the sentence: 4 8 1 2 ÷ 7 is about .

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