Starter
Practice counting back wards in 10s starting from different numbers. Fill in the missing numbers below:
72 __ __ 42 __ __
97 __ __ __ __ 47
83 __ 63 __ __ __
91 __ __ __ 51 __
104 __ __ __ __ __
Main
LO: Taking away 10 using a number line
We have learnt to add 10s on a number line. Now we are going to learn to subtract 10s on a number line.
Follow these instructions then work out the calculations. 
93 – 20 =
56 – 40 =
48 – 20 =
84 – 50 =
62 – 30 =
75 – 60 =
31 – 10 =
60 – 20 =
89 – 30 =
92 – 70 =
Extra Challenge
