Lesson Worksheet: Estimating Products of Fractions Mathematics • 5th Grade

In this worksheet, we will practice estimating products of fractions and mixed numbers by rounding them to 0, 1/2, or 1 and using this to solve real-world problems.

Q1:

Estimate 45 of 9.

  • A4
  • B2
  • C12
  • D3
  • E8

Q2:

Estimate 89×67 by rounding each fraction to 0, 12, or 1.

Q3:

Estimate 1313×57.

Q4:

Estimate 911×56 by rounding each fraction to 0, 12, or 1.

Q5:

Estimate 712×15 by rounding each fraction to 0, 12, or 1.

Q6:

Estimate 13×16 by rounding each fraction to 0, 12, or 1.

Q7:

Estimate 511×16 by rounding each fraction to 0, 12, or 1.

Q8:

Estimate 45×111 by rounding each fraction to 0, 12, or 1.

Q9:

Estimate 16×89 by rounding each fraction to 0, 12, or 1.

Q10:

Estimate 1389×37.

Q11:

Estimate 45 of 34.

  • A24
  • B7
  • C32
  • D8
  • E28

Q12:

Estimate 5387211−514.

  • A12
  • B10
  • C5
  • D6

Q13:

Estimate the product of 112×2512 by rounding each fraction to the nearest whole number.

Q14:

Estimate the product of 215×98 by rounding each fraction to the nearest whole number.

Q15:

By rounding each fraction to the nearest quarter, estimate 516×15.

Hint: Use the number line to help you.

  • A14
  • B116
  • C0
  • D12

Q16:

Estimate 7712×829.

  • A16
  • B56
  • C64
  • D72

Q17:

Sophia and James were asked to estimate 114×235 by rounding each factor to the nearest whole number. Sophia got 3, while James got 4. Who is correct?

  • AJames
  • BSophia

Q18:

Which product gives an estimate of 4 when rounding the first fraction to the nearest half and the second fraction to the nearest whole number?

  • A56×345
  • B56×325
  • C26×345
  • D56×245
  • E16×345

Q19:

Estimate the product of 113×234 by rounding each factor to the nearest whole number.

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