Here are some calculations for you.
Can you figure out the answers in your head?
No calculator allowed.
6 x 40  400 x 70  70 x 1000 
4 x 0.8  0.5 x 0.3  0.7 x 0.04 
40 ÷ 80  24 ÷ 0.6  8 ÷ 0.04 
Topics: Starter  Mental Methods  Place Value
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Previous Day  This starter is for 11 October  Next Day
6 x 40 = 240  400 x 70 = 28000  70 x 1000 = 70000 
4 x 0.8 = 3.2  0.5 x 0.3 = 0.15  0.7 x 0.04 = 0.028 
40 ÷ 80 = 0.5  24 ÷ 0.6 = 40  8 ÷ 0.04 = 200 
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