Name:    Lesson 1: Solving Problems by Estimating

1.

Maya wrote a story over two days.  On the first day she wrote 345 words and on the second day she wrote 213 words.  Estimate how many words were in Maya’s story altogether.
 a. 550 words b. 400 words c. 450 words d. 600 words

2.

Estimate the following sum.
413 + 506
 a. 600 b. 700 c. 800 d. 900

3.

Estimate the following sum.
778 + 211
 a. 700 b. 800 c. 900 d. 1000

4.

Estimate the following sum.
399 + 311
 a. 600 b. 700 c. 800 d. 900

5.

Estimate the following sum.
198 + 207 + 395
 a. 600 b. 700 c. 800 d. 900

6.

Lang is buying a new electronic gaming system and two new games. He has \$600 to spend. If the electronic gaming system costs \$485 and the two games cost \$89 and \$49, use estimation to find the total cost.
 a. \$500 b. \$550 c. \$600 d. \$650

7.

If a bicycle costs \$565 and the bike trailer costs \$129, estimate the total cost of the bicycle and trailer.
 a. \$700 b. \$750 c. \$800 d. \$850

8.

Estimate the following sum.
312 + 560 + 89
 a. 800 b. 850 c. 900 d. 950

9.

Estimate the following sum.
211 + 399 + 110
 a. 600 b. 650 c. 700 d. 750

10.

Estimate the following sum.
275 + 122 + 312
 a. 700 b. 800 c. 900 d. 1000