Here are some calculations for you.
Can you figure out the answers in your head?
No calculator allowed.
5 x 40  700 x 70  10 x 4000 
7 x 0.5  0.3 x 0.8  0.8 x 0.04 
10 ÷ 50  12 ÷ 0.3  24 ÷ 0.08 
Topics: Starter  Mental Methods  Place Value
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Previous Day  This starter is for 11 October  Next Day
5 x 40 = 200  700 x 70 = 49000  10 x 4000 = 40000 
7 x 0.5 = 3.5  0.3 x 0.8 = 0.24  0.8 x 0.04 = 0.032 
10 ÷ 50 = 0.2  12 ÷ 0.3 = 40  24 ÷ 0.08 = 300 
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