ESTIMATING DECIMALS SUMS AND DIFFERECES WORKSHEET

Problem 1 :

4.36 + 2.87

Solution

Problem 2 :

9.78 - 5.46

Solution

Problem 3 :

5.13 - 3.58

Solution

Problem 4 : 

2.94 + 4.08 

Solution

Problem 5 :

Approximate the total length of cheetah.

Solution

Problem 6 :

3.65 - 2.72 ≈ _____

Solution

Problem 7 :

9.03 - 6.78 ≈ _____

Solution

Problem 8 :

2.35 + 5.67 ≈ _____

Solution

Problem 9 :

8.21 - 4.11 ≈ _____

Solution

Problem 10 :

5.68 + 4.38 ≈ _____

Solution

Problem 11 :

3.92 + 3.92 ≈ _____

Solution

Problem 12 :

2.61 + 3.45 ≈ _____

Solution

Problem 13 :

2.07 - 1.45 ≈ _____

Solution

Problem 14 :

10.04 - 6.79 ≈ _____

Solution

Approximate the total cost of the two shirts.

Problem 15 :

Solution

Problem 16 :

Solution

Problem 17 :

At the grocery store, you buy items for $1.79, $3.15, $2.45, $9.08 and $3.49. Estimate the total amount you spend. ____

Solution

Problem 18 :

You buy 6 hamburgers that cost $3.45 each. Using only mental math, estimate the total amount of the 6 hamburgers.

Solution