Page 32 - NUMINO Challenge_C1
P. 32
Problem solving Key Points
1 Write or in the to make the equation Because
true. 100 123 23, make
123 4 5 67 89 100 23 with 4, 5, 67, and
89 by inserting or
.
2 Form an equation that results in 108 by inserting If you put two
s between the numbers. numbers and
1 2 3 4 5 6 7 8 9 108 together, making
them , the sum
increases by
10 9 .
29Number and Operations
1 Write or in the to make the equation Because
true. 100 123 23, make
123 4 5 67 89 100 23 with 4, 5, 67, and
89 by inserting or
.
2 Form an equation that results in 108 by inserting If you put two
s between the numbers. numbers and
1 2 3 4 5 6 7 8 9 108 together, making
them , the sum
increases by
10 9 .
29Number and Operations
