Page 112 - NUMINO Challenge_A2

2 The lengths that can be measured with each ruler are shown below.

1 cm 2 cm 4 cm 1 cm

1 cm, 2 cm, 3 cm, 4 cm, 5 cm, 6 cm, 7 cm, 8 cm

2 cm 1 cm 4 cm 1 cm

1 cm, 2 cm, 3 cm, 4 cm, 5 cm, 6 cm, 7 cm, 8 cm

3 cm 1 cm 3 cm 1 cm

1 cm, 3 cm, 4 cm, 5 cm, 7 cm, 8 cm

3 cm 3 cm 1 cm 1 cm

1 cm, 2 cm, 3 cm, 4 cm, 5 cm, 6 cm, 7 cm, 8 cm

Lengths of 2 cm and 3 cm cannot be measured with ruler .

4. Measurable Weights

Investigate Using Only One Side of the Balance

18 28
10 g
9g

1g 2g 12 8 48
11 g
12 4 12 g
3g 4g
14 8 24 8
14 24 13 g 14 g
5g 6g
12 4 8
12 4 8 15 g
7g 8g

7Answer Key