Adding
Subtracting
Multiplying
Dividing
Processes
100
6 + 7 = K
The K represents 13
100
16 - 8 = V
The V represents 8
100
5 x 8 = R
The R represents 45
100
12 divided into groups of 4 = N items in each group
The N represents 3
100
12 = 6 + 6
What is an example of doubling
200
15 + 15 = M
The M represents 30
200
11 - 6 = P
The P represents 5
200
7 x 6 = J
The J represents 42
200
36 divided into groups of 9 = M groups
The M represents 4 groups
200
6 + 7 = 13
What is an example of doubling plus 1
300
W = 123 + 123
The W represents 246
300
6 + Z = 18
The Z represents 12
300
D = 7 x 7
The D represents 49
300
64 divided into groups of 8 = H groups
The H represents 8 groups
300
45 x 100 = 4 500
What is an example of multiples of 10
400
T = 6 + 7
The T represents 13
400
5 + W = 12
The W represents 7
400
6 x 8 = 24 + C
The C represents 48
400
F groups = 45 items divided into groups of 5
F represents 9
400
If 8 + 8 = 16 then 4 + 4 must be 8
What is an example of halving
500
T + 5 = 7 + 8
The T represents 10
500
18 - 9 = L + 4
The L represents 5
500
56 divided into 8 groups = 8 x G
The G represents 7
500
8 x 9 = 8 groups of Q items
The Q represents 9 items
500
4, 8, 12, 16, 20, 24, 28, 32, 36, 40
What is and example of skip counting
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