Introduction to scale factor

Multiplicative relationships 1224   4 12   1  1 1 4

Scale factors 20   1  1   1 1 8

Scaling 1    3.2  1 or   1 1

Unitary method  1 1 4  9  9 9 4

Number lines 419  1 1 4  9  9 9 4

Unitary method  1 1  7  7 7 15

Number lines  1 1  7 15

Inverse Relationships 1.2    8  8  1  1  4  4 4 9

Kilometres and miles  1 1 8  5  5 km  5 miles 20 miles  5 km