Here are some calculations for you.
Can you figure out the answers in your head?
No calculator allowed.
3 x 10  700 x 40  90 x 7000 
5 x 0.3  0.7 x 0.5  0.4 x 0.09 
12 ÷ 20  14 ÷ 0.2  12 ÷ 0.02 
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Topics: Starter  Mental Methods  Place Value
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Previous Day  This starter is for 11 October  Next Day
3 x 10 = 30  700 x 40 = 28000  90 x 7000 = 630000 
5 x 0.3 = 1.5  0.7 x 0.5 = 0.35  0.4 x 0.09 = 0.036 
12 ÷ 20 = 0.6  14 ÷ 0.2 = 70  12 ÷ 0.02 = 600 
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