Here are some calculations for you.
Can you figure out the answers in your head?
No calculator allowed.
5 x 60  400 x 90  20 x 9000 
8 x 0.8  0.8 x 0.1  0.2 x 0.03 
45 ÷ 90  28 ÷ 0.7  56 ÷ 0.07 
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Topics: Starter  Mental Methods  Place Value
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Previous Day  This starter is for 11 October  Next Day
5 x 60 = 300  400 x 90 = 36000  20 x 9000 = 180000 
8 x 0.8 = 6.4  0.8 x 0.1 = 0.08  0.2 x 0.03 = 0.006 
45 ÷ 90 = 0.5  28 ÷ 0.7 = 40  56 ÷ 0.07 = 800 
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