Name:    Lesson 7: Solving Problems by Guessing and Testing

1.

Use the guess and test method to solve the following problems.

When you multiply a number by 6, then add 5, the number is 35.  What is the number?
 a. 4 b. 5 c. 6 d. 7

2.

When you divide a number by 7, then add 10, the answer is 13.  What is the number?
 a. 20 b. 21 c. 22 d. 23

3.

When you multiply a number by 7, then add 2, the number is 51.  What is the number?
 a. 4 b. 5 c. 6 d. 7

4.

When you add 5 to a number, then divide it by 5, the answer is 5.  What is the number?
 a. 20 b. 25 c. 5 d. 6

5.

If you subtract 4 from a number, then multiply by 3, then answer is 3. What is the number?
 a. 10 b. 8 c. 5 d. 2

6.

The area of a rectangle is 45 square units. The width is 4 more units than the length. What is the length of the rectangle?
 a. 9 b. 8 c. 4 d. 5

7.

What is the width of the rectangle?
 a. 9 b. 8 c. 4 d. 5

8.

Kelser bought 3 pails. Two small pails were the same price and one large pail was \$20.00 more than the other 2. If Kesler spent \$95.00 on the pails, how much was the larger pail?
 a. \$30.00 b. \$35.00 c. \$40.00 d. \$45.00

9.

How much were each of the smaller pails?
 a. \$20.00 b. \$25.00 c. \$30.00 d. \$35.00

10.

Clark chose a number. He listed the next three numbers in the sequence. The sum of the four numbers was 58.  What was the starting number?
 a. 13 b. 14 c. 15 d. 16