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Make up as many expressions with numbers ( no variables) as you can from three numbers 5, 7 and 8. Every number should be used not more than once. Use only addition, subtraction and multiplication.(Hint: Three possible expressions are 5 + (8 – 7), 5 – (8 – 7),(5 × 8) + 7; make the other expressions.) |
Answer» Many expressions can be formed by using the 3 numbers 5, 7 and 8 Some of these are as follows 5 × (8 – 7) 5 × (8 + 7) (8 + 5) × 7 (8 – 5) × 7 (7 + 5) × 8 (7 – 5) × 8 |
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