High School: 9th and 10th Grade - Math - Addition And Subtraction 4 Solution - MCQGeeks.com

Q.1.

Increase 450 by 230.

0%
220
0%
280
0%
580
100%
680

Q.2.

Which strategy would be best to subtract 2.9?

60%
Add 3 subtract 1
20%
Subtract 3 add 0.1
0%
Subtract 3 subtract 0.1
20%
Subtract 3 add 1

Q.3.

Which strategy would be best to add 69 + 61 + 65 + 67?

40%
(60 x 4) + (1 + 5 + 7 + 9)
0%
(70 x 4) - (1 + 5 + 7 + 9)
40%
(61 + 65) + (67 + 69)
20%
(60 x 4) - (1 + 5 + 7 + 9)

Q.4.

Which of these pairs would not make a whole number?

0%
2.78 + 0.22
20%
3.54 + 2.46
80%
5.01 + 1.9
0%
4.97 + 2.03

Q.5.

How many altogether are 258 and 162?

20%
320
0%
400
60%
420
20%
450

Q.6.

What is the best method of adding 34 + 48 + 56?

50%
Find the pair that total a multiple of 100 - add these first
50%
Find the pair that total a multiple of 10 - add these first
0%
Add 10s first then the units
0%
Double 34 then adjust

Q.7.

What is the difference between 6.3 and 2.4?

0%
2.9
25%
3.9
25%
4
50%
4.1

Q.8.

Which of these number sentences is incorrect?

0%
2.56 + 3.41 = 5.97
33%
5.97 - 3.41 = 2.56
0%
5.97 - 2.56 = 3.41
67%
3.41 - 2.56 = 5.97

Q.9.

Decrease 2.5 by 1.8.

0%
0.6
50%
0.7
25%
1.7
25%
4.3

Q.10.

What is the best method of adding 0.9?

0%
Add 1 subtract 1
25%
Add 1 add 0.1
0%
Subtract 1 subtract 0.1
75%
Add 1 subtract 0.1