Page 92 - NUMINO Challenge_M2

Problem solving

1 Use the expressions below to find the numbers Key Point
that , , and represent. What is the greatest
3-digit number that can be made by using , , Use a table to find
and ? and .

Examples

55
28
3

2 Five number cards were used to make the

following expressions. Find the numbers that A,
B, C, D, and E represent.

13579

AEA
BECD
CDDE
CDEA

89Operations