Ages 11–12🧮 Mathematics10 verified questions on this shelf
Using inverse operations
Recognise and use relationships between operations including inverse operations; use these relationships to check answers and simplify calculations
Try three questions
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Question 1 of 3
A video‑game store had some consoles in stock. First it sold 27 consoles, and then a shipment of 43 new consoles arrived. After these two events the store counted 112 consoles. How many consoles were in the store before any were sold or received?
Question 2 of 3
Jamal has 212 marbles. He puts the same number of marbles into each of 8 bags and then finds that 12 marbles are left over and cannot be placed in a bag. How many marbles are in each completely filled bag?
Question 3 of 3
Sofia has 48 stickers. She gives some to her friend and now has 20 stickers left. How many stickers did she give away?
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