Author: Alex

Do NOT use a calculator!

Nice and easy

Bit more to it

Challenging

15
x 2
- 8
Halve it
x 4
+ 1
÷ 9
Multiple by itself
- 7
Halve it
Answer =

89
+ 11
3/5 of this
- 5
2/11 of this
multiply by itself
- 19
÷ 9
x 3
Double it
Answer =

4
Multiply by itself twice
+ 16
70 % of this
- 2
7/9 of this
- 3
33 ⅓% of this
x 100
50% of this
Answer =

Nice and easy

Bit more to it

Challenging

15
15 x 2 = 30
30 - 8 = 22
22 ÷ 2 = 11
11 x 4 = 44
44 + 1 = 45
45 ÷ 9 = 5
5 x 5 = 25
25 - 7 = 18
18 ÷ 2 = 9
Answer = 9

89
89 + 11 = 100
100 ÷ 5 = 20 / 20 x 3 = 60
60 - 5 = 55
55 ÷ 11 =5 / 5 x 2 = 10
10 x 10 =100
100 - 19 = 81
81 ÷ 9 = 9
9 x 3 = 27
27 x 2 = 54
Answer = 54

4
4 x 4 x 4 = 64
64 + 16 = 80
10% = 8 / 70% = 8 x 7 = 56
56 - 2 = 54
54 ÷ 9 = 6 / 6 x 7 = 42
42 - 3 = 39
39 ÷ 3 = 13
13 x 100 = 1300
1300 ÷ 2 = 650
Answer = 650