Estimate Mixed Number Sums and Differences

Estimate the difference by rounding each number to the nearest whole number and then subtracting.

10.477 − 3.316

The difference is approximately

Estimate the difference by rounding each number to the nearest whole number and then subtracting.

7.096 − 4.774

The difference is approximately

Estimate the difference.

419.5 - 10.05 =

• 419

• 390

• 410

• 300

Estimate
4/5 + 5/9

• 1

• 1 1/2

• 2

• 0

Estimate
9/11 - 5/12

• 1

• 1 1/2

• 1/2

• 2

Jake added 1/8 cup of sunflower seeds and 4/5 cup of banana chips to his sundae. Which is the best estimate of the total amount of toppings Jake added to his sundae?

• about 2 cups

• about 1 cup

• about 1 1/2 cups

• about 1/2 cup

Multi-Step Dustin buys 9/10 yard of striped fabric. He uses 3/8 yard. He buys 7/8 yard more. About how much fabric does Dustin have now?

• yard

• /2 yard

• 1 1/2 yards

• 2 yards

Estimate the difference. 9.76 – 3.28