Here are some calculations for you.
Can you figure out the answers in your head?
No calculator allowed.
1 x 30  600 x 50  80 x 7000 
1 x 0.6  0.2 x 0.2  0.3 x 0.04 
12 ÷ 40  12 ÷ 0.4  4 ÷ 0.02 
Topics: Starter  Mental Methods  Place Value
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Previous Day  This starter is for 11 October  Next Day
1 x 30 = 30  600 x 50 = 30000  80 x 7000 = 560000 
1 x 0.6 = 0.6  0.2 x 0.2 = 0.04  0.3 x 0.04 = 0.012 
12 ÷ 40 = 0.3  12 ÷ 0.4 = 30  4 ÷ 0.02 = 200 
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