Page 96 - NUMINO Challenge_M2
P. 96
Problem solving Key Point
1 Find two ways to complete the expressions 7+3+4=14
below by using + or -. 12-4-2=6
7 3 4 12 4 2
7 3 4 12 4 2
2 The example shows how 11 was made using the If + or - sign is
not placed in
operation symbols + and -. between 1 and 2,
the number
Example becomes 12.
1 2 3 4 11 12 3 4 11
Use the same method to place + or - sign
between numbers. Note that + or - sign does
not have to be placed in between all numbers.
1 2 3 4 5 10
93Operations
1 Find two ways to complete the expressions 7+3+4=14
below by using + or -. 12-4-2=6
7 3 4 12 4 2
7 3 4 12 4 2
2 The example shows how 11 was made using the If + or - sign is
not placed in
operation symbols + and -. between 1 and 2,
the number
Example becomes 12.
1 2 3 4 11 12 3 4 11
Use the same method to place + or - sign
between numbers. Note that + or - sign does
not have to be placed in between all numbers.
1 2 3 4 5 10
93Operations
