Lesson Worksheet: Estimating the Products of Two-Digit Numbers: Rounding Mathematics • 4th Grade
In this worksheet, we will practice estimating the product of two positive two-digit numbers by rounding to the nearest ten.
Q7:
Which of the following is the estimate for when the two numbers are rounded to the nearest 10?
- A1,600
- B2,400
- C2,700
- D16,000
Q8:
Which product gives an estimate of 1,800 when the two multiplied numbers are rounded to the nearest 10?
- A
- B
- C
- D
Q9:
A teacher asked to estimate the product of . Jackson found 2,100, whereas Amelia found 1,400. Estimate the product yourself and decide which student is correct.
- AJackson
- BAmelia
Q10:
Daniel earns £93 a day. Work out an estimate for how much he earns in 18 days.
Q11:
Estimate the product of by rounding to the nearest 10.
Q12:
Jacob needed to find the result of . He used rounding to estimate the product and got 7,200. Was Jacob correct?
- ANo
- BYes
Q13:
Fill in the blank: The expression can be rounded to , and we get 4,900.
- A
- B
- C
- D
- E
Q14:
Complete using , , or : .
- A
- B
- C
Q15:
Madison wants to estimate the product of 22 and 52. Help her find the estimated product by rounding each number to the nearest 10.
Q16:
James estimates the result of to be 1,500. State whether his estimation is reasonable or not.
- AReasonable
- BNot reasonable