Numeracy - Percentages -1% and 10% of a number - combinations of landmark percentages KS2

2 follow on lessons for building on skills that allow to find landmark percentages through place value manipulation division. Then building in to combing these percentages for various totals.

L.O.-To find percentages of an amount using landmark percentages.
Achieve: I can know what to divide by to find 1% or 10% of an amount.
Challenge: I can use place value manipulation to find 1% and 10% of an amount.
Aspire: I can explain the efficiency of a method to find 1% and 10% of an amount.

L.O.-To find percentages of an amount using landmark percentages.
Achieve: I can accurately find values of 1% and 10%.
Challenge: I can combine landmark percentages to find other values.
Aspire: I can explain the efficiency of different landmark percentage combinations to achieve a value.