Here are some calculations for you.
Can you figure out the answers in your head?
No calculator allowed.
8 x 40  100 x 10  20 x 3000 
2 x 0.3  0.4 x 0.7  0.4 x 0.09 
9 ÷ 90  35 ÷ 0.7  27 ÷ 0.09 
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Topics: Starter  Mental Methods  Place Value
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Previous Day  This starter is for 11 October  Next Day
8 x 40 = 320  100 x 10 = 1000  20 x 3000 = 60000 
2 x 0.3 = 0.6  0.4 x 0.7 = 0.28  0.4 x 0.09 = 0.036 
9 ÷ 90 = 0.1  35 ÷ 0.7 = 50  27 ÷ 0.09 = 300 
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