Download - MENTAL COMPUTATION
Transcript
MENTAL COMPUTATION
MULTIPLICATIONand DIVISION
1
Double 12
2
Double 50
3
Double 33
4
Double 66
5
Double 45
6
2 x 18 =
7
2 x 100 =
8
120 x 2 =
9
2 x 350 =
10
500 x 2 =
11
2 x 75 =
12
2 x 80 =
13
2 x 84 =
14
4 x 23 =
15
4 x 36 =
16
5 x 70 =
17
10 x 70 =
18
10 x 78 =
19
100 x 18 =
20
Halve 24
21
Halve 16
22
Halve 48
23
Halve 500
24
Halve 160
25
86 ÷ 2 =
26
92 ÷ 2 =
27
78 ÷ 2 =
28
340 ÷ 2 =
29
400 ÷ 2 =
30
270 ÷ 10 =