Name:    Lesson 8: Multiplying Two-Digit Numbers

1.

Quinn reads, “Every 3 s, a hummingbird flaps its wings 45 times.”

How many times does a hummingbird flap its wings in 45 s?
 a. 600 b. 675 c. 625 d. 574

2.

How many times does a hummingbird flap its wings in 75 s?
 a. 1125 b. 625 c. 775 d. 1025

3.

How many times does a hummingbird flap its wings in 99 s?
 a. 1415 b. 1585 c. 1485 d. 1515

4.

Cheryl reads, “Every 3 min, Britons eat 3600 potatoes.”

How many potatoes will Britons eat in 60 min?
 a. 10 800 b. 150 000 c. 72 000 d. 216 000

5.

How many potatoes will Britons eat in 90 min?
 a. 324 000 b. 108 000 c. 216 000 d. 169 000

6.

How many potatoes will Britons eat in 75 min?
 a. 54 000 b. 108 000 c. 90 000 d. 75 000

7.

Joshua’s heart beats 216 times in 3 min. How many times will it beat in 30 min?
 a. 6480 b. 21600 c. 2160 d. 684

8.

How many times will Joshua’s heart beat in 90 min?
 a. 19 440 b. 1944 c. 64 800 d. 6480

9.

How many times will Joshua’s heart beat in 120 min?
 a. 864 b. 8640 c. 8460 d. 846

10.

How many times will Joshua’s heart beat in 3 h?
 a. 16 820 b. 19 260 c. 12 960 d. 29 600