Page 152 - NUMINO Challenge_L1

Problem solving

1 The number 2 is written using 5 matchsticks. The numbers 3 and 5 can also be

made.

,

2 Make the number 1 with 2 matchsticks, the number 7 with 3 matches, and the

number 4 with 4 matchsticks. Making the numbers 1, 7, and 4 will use all 9
matchsticks.

,,

Type Study If a matchstick is moved, the number of matchsticks used does not change.

Number of matchsticks Move one Add one Remove one

6 7 5

Count the number of matchsticks needed to write each number.

Number of matchsticks 5 6 7

Numbers that 2, 3, 5 , 0, 6 8
can be made

23Answer Key