Middle School: 6th, 7th and 8th Grade - Math - Mental Methods For Multiplication Solution - MCQGeeks.com

Q.1.

Which calculation 'family' would be most appropriate to describe 15 cakes?

0%
3 x 4 = 12 4 x 3 = 12 3 + 3 + 3 + 3 = 12 4 + 4 + 4 = 12
100%
3 x 5 = 15 5 x 3 = 15 3 + 3 + 3 + 3 + 3 = 15 5 + 5 + 5 = 15
0%
5 x 4 = 20 4 x 5 = 20 4 + 4 + 4 + 4 = 20 5 + 5 + 5 + 5 = 20
0%
6 x 4 = 24 4 x 6 = 24 4 + 4 + 4 + 4 + 4 + 4 = 24 6 + 6 + 6 + 6 = 24

Q.2.

What are three lots of four?

0%
4 + 3 = 12
0%
3 + 3 = 12
100%
3 x 4 = 12
0%
3 x 3 = 12

Q.3.

2 x 3 = 6 so:

0%
3 x 3 = 6
0%
2 + 3 = 6
0%
3 + 2 = 6
100%
3 x 2 = 6

Q.4.

Which of the following calculations is correct?

100%
4 x 4 = 16
0%
4 + 4 + 4 = 16
0%
3 = 4 = 16
0%
4 + 4 + 4 + 4 + 4 = 16

Q.5.

Jane makes rows of candies. She puts 5 candies in each row. If she makes 4 rows, how many candies will she use?

0%
45 because 4 x 5 = 45
0%
54 because 5 x 4 = 54
0%
25 because 5 x 5 = 25
100%
20 because 5 x 4 or 4 x 5 = 20

Q.6.

If 2 hands = 10 fingers, how many fingers will 6 hands be?

33%
30 because 6 x 10 = 30
67%
30 because 3 x 10 = 30
0%
30 because 6 x 2 = 30
0%
30 because 2 x 6 = 30

Q.7.

2 + 2 + 2 + 2 is the same as:

0%
4 x 4
0%
2 x 2
100%
4 x 2
0%
2 x 2 x 2 x 2

Q.8.

Pizzas are cut into 8 slices. Which calculations show how many slices there would be if there were 3 pizzas?

67%
3 x 8 = 24 8 x 3 = 24 3 + 3 + 3 + 3 + 3 + 3 + 3 + 3 = 24 8 + 8 + 8 = 24
33%
2 x 4 = 8 4 x 2 = 8 4 + 4 = 8 2 + 2 + 2 + 2 = 8
0%
2 x 8 = 16 8 x 2 = 16 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 = 16 8 + 8 = 16
0%
4 x 8 = 32 8 x 4 = 32 8 + 8 + 8 + 8 = 32 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 = 32

Q.9.

Which of the following calculations is incorrect?

0%
2 x 6 = 12
0%
6 x 2 = 12
0%
2 + 2 + 2 + 2 + 2 + 2 = 12
100%
4 x 4 = 12

Q.10.

Which of the following calculations is correct?

100%
4 x 3 = 12
0%
3 x 3 = 12
0%
2 x 4 = 12
0%
4 x 4 x 4 = 12