Walt: Use reversibility to rewrite addition and subtraction problems
Part-whole addition and subtraction
Show your working out in your maths book or in the box:
Sally had 33 raffle tickets. She sold 15. How many does she still have to sell?
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Ana had $55. She spent $27 on dinner. How much money does she have left?
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Joe has 27 donuts. He buys 36 more. How many does he have now?
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A Moro bar weighs 45 grams. Jenna buys 3 Moro bars. How grams is that all together?
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Olivia saved her pocket money. She spent $26 and has $18 left now. How much money did she have in the start?
44
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Kingston made a big order at KFC. He bought 72 pieces of fried chicken. After dinner, there were 46 pieces left. How many pieces were eaten?
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Jenna is 146cm tall. Her little brother is 88cm tall. How much taller is Jenna?
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Ben and Sara played a game. Ben got 170 points. Sara got 234 points. How many points does Sara have than Ben?
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Miss Scanlan has 342 Jelly Beans. She buys 98 more. How many does she have now?
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Wiremu saved $365. His papa gave him $250 for his birthday. How much money does he have now?
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