Page 126 - NUMINO Challenge_B1

Problem solving

1 What lengths can be measured using these three Key Points
colored tapes?
Measure lengths by
adding and
subtracting the
different lengths of
colored tapes.

1 cm 4 cm 6 cm

2 There are four steel wires of different lengths Find the lengths that
below. Which of the following lengths cannot be can be measured by
measured by using these wires? joining or overlapping
the wires.

15 cm 2 cm

4 cm 10 cm 12 cm
3 cm 16 cm

8 cm
14 cm

123Measurement