Estimating with Rounding (Ex. 1)

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1. Question 1

   Multiple choice

   Estimate 48,732 + 31,268 by rounding to the nearest 10,000.

2. Question 2

   Multiple choice

   Estimate 89,345 - 41,678 by rounding to the nearest 10,000.

3. Question 3

   Multiple choice

   Which is the best estimate for 312,456 + 488,200?

4. Question 4

   Sequence

   What is the missing number in the sequence? 10,000 ; 20,000 ; 30,000 ; ___ ; 50,000

5. Question 5

   True or false

   Rounding before adding gives an exact answer.

More exercises in this module

• Efficient Calculation Strategies (Ex. 1)

• Efficient Calculation Strategies (Ex. 3)

• Adding Large Numbers (Ex. 3)

• Estimating with Rounding (Ex. 3)

• Six-Digit Addition (Ex. 6)

• Subtracting Large Numbers (Ex. 3)