Page 150 - NUMINO Challenge_K2

Challenge Yourself

p.64 Challenge Yourself p.65

Sally went from her house to the playground and went back Three friends stand in a line to take a picture. Find all of
home. How many ways can she take from her house to the the ways they can stand.

playground, then back? 4 ways

Sally’s house Playground

Sue Mike Gina

The following are two different ways they can stand.

The spinner is spun twice to find the sum of the two numbers Sue Mike Gina Mike Sue Gina
that it lands on. Use a tree diagram to find the possible sums
that can be made.

13 1st number 2nd number 2 Sue Mike Gina Sue Gina Mike
2 3 Mike Sue Gina Mike Gina Sue
1 1 4 Gina Sue Mike Gina Mike Sue
2, 3, 4, 5, 6 2
2 3 3
64 NUMINO Challenge K2 4
3 1 5
2
3 4
5
1 6
2
3

65Problem Solving

Problem solving strategies include drawing a picture, writing an expression, drawing a
table, working backwards, simplifying problems, guessing & checking, and finding a
pattern. Have the students use various methods to solve the problems and check their
own solutions. Have them think of other methods for solving each problem.

21Answer Key