Level 4BNumber and Algebrachapter 8 - Expressions, formulae
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1 |
Write an expression for how much each person has now. (Answer the formula like in the questions, n, y, g and m.)
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| a Olive had $n. She found $5. |
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| b Reuben had $y. He spent $12 to buy a game. |
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| c Ben had $g. He got another $25 from his after school job. |
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| d Sai had $m. He was given another $10 but then he lost $n. |
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2 |
Samantha made these patterns with pictures of Norman |
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She used this formula to find the number of pictures of Spice in each pattern.
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and Spice 
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How many pictures of Spice will there be in a picture which has these?
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| a 5 pictures of Norman | b 35 pictures of Norman |
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| c 125 pictures of Norman | ||||||
3
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Finish the equation for each of these. (Please don't insert full equation in answers, just the number followed by a comma, 1, 2 for example.)
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a |
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x + ? = ? |
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| b |
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?n = ? |
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| c |
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?m = ? |
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| d |
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?y + ? = ? |
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4 |
What is the number? |
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a I think of a number, add 4 and the answer is 11. |
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| b I think of a number, multiply by 3 and the answer is 39. | |||||
| c I think of a number, divide by 6 and the answer is 8. | |||||
| d When I multiply a number by 6 then add 2 the answer is 26. | |||||
| e When I divide a number by 3 and then add 5 the answer is 16. | |||||
