Worksheet: Estimating Sums, Differences, Products, and Quotients of Mixed Numbers

In this worksheet, we will practice estimating the sums, differences, products, and quotients of mixed numbers by rounding then applying the arithmetic operations.

Q1:

By rounding each term to a whole number, estimate 5 4 5 ÷ 2 1 2 .

Q2:

Estimate 5 3 8 7 2 1 1 5 1 4 .

  • A5
  • B12
  • C6
  • D10

Q3:

12 pounds of oatmeal are going to be packaged in bags that hold 3 5 9 pounds each. By rounding to whole numbers, estimate the number of bags that will be used.

  • A2
  • B4
  • C48
  • D3
  • E16

Q4:

By rounding each term to a whole number, estimate 8 1 3 ÷ 3 4 5 .

Q5:

By rounding each term to a whole number, estimate 7 1 0 1 1 ÷ 4 1 3 .

Q6:

By rounding each term to a whole number, estimate 9 3 4 ÷ 4 1 0 1 1 .

Q7:

By rounding each term to a whole number, estimate 8 1 5 ÷ 4 1 3 .

Q8:

Estimate 9 1 1 2 8 5 6 5 4 5 .

  • A36
  • B30
  • C40
  • D27

Q9:

Estimate 9 7 1 1 9 1 3 2 1 4 .

  • A60
  • B63
  • C54
  • D70

Q10:

Estimate 3 7 9 5 1 1 1 2 + 4 1 6 .

  • A44
  • B30
  • C33
  • D40

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