Page 14 - NUMINO Challenge_C2
P. 14
Problem solving
1 In the following multiplication problems, the sum Key Points
of the 1st numbers is 10 and the 2nd numbers are
the same. Split the results in
half and find the
rules.
73 86 57
33 26 57
2409 2236 3249
Multiply using the rules above. 92
12
48
68
2 Look at the different multiplications of 2-digit 11 ) 10
numbers below. Find the rules. 100 (
( )
13 14 100 70 12 182
17 16 100 130 42 272
15 13 100 80 15 195
Multiply using the rules above.
19 12 14 18
11Number and Operations
1 In the following multiplication problems, the sum Key Points
of the 1st numbers is 10 and the 2nd numbers are
the same. Split the results in
half and find the
rules.
73 86 57
33 26 57
2409 2236 3249
Multiply using the rules above. 92
12
48
68
2 Look at the different multiplications of 2-digit 11 ) 10
numbers below. Find the rules. 100 (
( )
13 14 100 70 12 182
17 16 100 130 42 272
15 13 100 80 15 195
Multiply using the rules above.
19 12 14 18
11Number and Operations
