Here are some calculations for you.
Can you figure out the answers in your head?
No calculator allowed.
1 x 30  100 x 50  70 x 8000 
4 x 0.1  0.8 x 0.8  0.9 x 0.09 
3 ÷ 10  7 ÷ 0.1  45 ÷ 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
1 x 30 = 30  100 x 50 = 5000  70 x 8000 = 560000 
4 x 0.1 = 0.4  0.8 x 0.8 = 0.64  0.9 x 0.09 = 0.081 
3 ÷ 10 = 0.3  7 ÷ 0.1 = 70  45 ÷ 0.09 = 500 
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