3.OA.4.-Test1C Determine the unknown whole number
 Name:    3.OA.4.-Test1C Determine the unknown whole number

Multiple Choice
Identify the choice that best completes the statement or answers the question.

1.

George gave Grace a number riddle.  Here are his clues.

My number is between 10 and 20.

My number can be divided by 3.

My number is odd.

What number is George thinking of?
 a. 12 c. 18 b. 21 d. 15

2.

Determine the number that makes each of the following equations true.

10 x ____ = 20           40 ÷ ____ = 20           ____ x 6 =12
 a. 10 c. 5 b. 2 d. 4

3.

Determine the number that makes each of the following equations true.

9 x ____ = 27       36 ÷ _____  = 12          _____ x 5 = 15
 a. 2 c. 3 b. 5 d. 4

4.

Jessica gave Julie a number riddle, here are her clues.

My number is between 10 and 20.

My number can be divided by 5.

My  number is odd.

What number is Jessica thinking of?
 a. 21 c. 12 b. 15 d. 16

5.

Determine the number that makes each of the following equations true.

8 x____ = 16         24 ÷ ____ = 12       _____ x 5 = 10
 a. 6 c. 8 b. 4 d. 2

6.

Determine the number that makes each of the following equations true.

7 x ____ = 21       15 ÷ ____ = 5      ____ x 6 = 18
 a. 4 c. 5 b. 3 d. 6

7.

Arnold gave Alex a number riddle, here are his clues.

My number is between 20 and 30.

My number can be divided by 2.

My number has 2 digits that are the same.

What number was Arnold thinking of?
 a. 30 c. 21 b. 26 d. 22

8.

Determine the number that makes each of the following equations true.

4 x ____ = 36      81 ÷ ____ = 9         _____ x 3 = 27
 a. 9 c. 6 b. 4 d. 3

9.

Determine the number that makes each of the following equations true.

6 x __ = 36            48 ÷ 8 = ____      ______ x 3 = 18
 a. 12 c. 6 b. 3 d. 8

10.

Determine the number that makes each of the following equations true.

7 x ____ = 49         63 ÷ ____ = 9      _____ x 5 = 35
 a. 4 c. 7 b. 2 d. 5