Secret decimal message
Write the answer to each calculation in the box and convert it to a letter using the key at
the bottom of the page.
Questions
Answer
Letter
1.2 x 1.2
100 ÷ 1000
0.8 ÷ 0.4
1÷5
3.15 – 2.9
0.5 x 0.5
10 ÷ 1000
1 + 0.69
1.2 ÷ 6
√0.81
2÷8
0.4 x 1.05
6.23 + 1.77
6 x 0.24
0.64 ÷ 0.08
0.82
3 - 2.36
3.26 – 0.8
1.42 + 0.27
0.62
4 ÷ 0.4
3.2 ÷ 5
9.06 – 8.96
200 x 0.05
12.03 - 11.83
628 ÷ 62.8
0.4 x 1.6
0.12
5.63 – 3.94
1.13 – 0.93
8 x 0.25
0.13 + 0.12
1 ÷ 0.2
5 – 3.31
3 x 0.3
4 ÷ 0.8
60 x 0.007
1.32
5.4 ÷ 6
0.43 x 10
?
0.4 x 0.9
5 x 0.002
1.2 x 3.6
1 ÷ 0.125
20 x 0.018
12.8 ÷ 6.4
A = 0.25
E = 0.64
I = 4.32
O=5
U = 0.9
P=8
T = 0.01
H = 0.2
W = 0.1
N = 1.69
S = 10
Y=2
M = 0.42
L = 0.36
B = 1.44
R = 2.46
© www.teachitmaths.co.uk 2014
22928
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Secret decimal message
Answers
Questions
Answer
Letter
100 ÷ 1000
0.1
W
1.2 x 1.2
1.44
B
1÷5
0.2
H
0.8 ÷ 0.4
2
Y
0.5 x 0.5
0.25
A
10 ÷ 1000
0.01
T
3.15 – 2.9
0.25
A
1.2 ÷ 6
0.2
H
1 + 0.69
1.69
N
2÷8
0.25
A
√0.81
0.9
U
6.23 + 1.77
8
P
0.4 x 1.05
0.42
M
0.64 ÷ 0.08
8
P
6 x 0.24
1.44
B
3 - 2.36
0.64
E
0.82
0.64
E
1.42 + 0.27
1.69
N
3.26 – 0.8
2.46
R
4 ÷ 0.4
10
S
0.62
0.36
L
9.06 – 8.96
0.1
W
3.2 ÷ 5
0.64
E
12.03 - 11.83
0.2
H
200 x 0.05
10
S
0.4 x 1.6
0.64
E
628 ÷ 62.8
10
S
5.63 – 3.94
1.69
N
0.12
0.01
T
8 x 0.25
2
Y
1.13 – 0.93
0.2
H
1 ÷ 0.2
5
O
0.13 + 0.12
0.25
A
3 x 0.3
0.9
U
5 – 3.31
1.69
N
60 x 0.007
0.42
M
4 ÷ 0.8
5
O
5.4 ÷ 6
0.9
U
1.32
1.69
N
3
0.4 x 0.9
0.36
L
0.64
E
5 x 0.002
0.01
T
1.2 x 3.6
4.32
I
1 ÷ 0.125
8
P
20 x 0.018
0.36
L
12.8 ÷ 6.4
2
Y
0.4 x 10
?
The next step is for students to create new calculations which give
the answer to the first question and then test it on each other.
© www.teachitmaths.co.uk 2014
22928
Page 2 of 2