WorksheetsMental Math
Total questions: 20
Worksheet time: 28mins
Name
Class
Date
1.
4x3
a)
12
b)
7
c)
6
d)
16
2.
4x8
a)
12
b)
23
c)
32
d)
42
3.
500-220
a)
300
b)
200
c)
280
d)
400
4.
Which is the missing number: 7 + ___ = 20
a)
10
b)
12
c)
13
d)
14
5.
Which number sentence is wrong?
a)
8 + 5 = 13
b)
13 - 5 = 8
c)
5 + 8 = 13
d)
8 - 5 = 13
6.
5 + 10 = 8 + ___
a)
5
b)
6
c)
7
d)
8
7.
____ - 9 = 6
a)
13
b)
14
c)
15
d)
16
8.
5x...=30
a)
5
b)
8
c)
10
d)
6
9.
21 of...is 24
What is ...
a)
36
b)
48
c)
63
d)
12
10.
31 of...is 9
What is ...
a)
36
b)
27
c)
18
d)
72
11.
84 ÷ 7=...
a)
9
b)
12
c)
14
d)
10
12.
12x...=72
a)
5
b)
7
c)
9
d)
6
13.
True or False:5x(5+7)=72
a)
True
b)
False
14.
True or False: 85+12>109−(6+6)
a)
True
b)
False
15.
...×...=64
a)
9x8
b)
8x8
c)
6x5
d)
7x4
16.
7x7
a)
36
b)
48
c)
49
d)
56
17.
21 of 36 is...
a)
16
b)
15
c)
18
d)
17
18.
The temperature is 32°C. If it falls by 15 degrees at night, what is the temperature now?
a)
22°C
b)
20°C
c)
40°C
d)
17°C
19.
A chicken needs to be cooked for 2 hours and 20 minutes. It needs to be ready at 1:00 pm. At what time do I need to start cooking it?
a)
noon
b)
11:40 am
c)
10:40 am
d)
9:30 am
20.
1+2+3+4+5+6+7+8+9+10=
a)
54
b)
56
c)
55
d)
none
100 %
