Multiplication
31*5=155
Multiplication is repeated addition: 31 groups of 5 (or 5 groups of 31) total 155. Recalling the times tables lets you find 31*5 quickly instead of adding step by step.
Multiplication
Multiplication is repeated addition: 31 groups of 5 (or 5 groups of 31) total 155. Recalling the times tables lets you find 31*5 quickly instead of adding step by step.