Laske. Merkitse myös välivaiheet.
150 : 50 ∙ 3 − (4 + 5)
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(15 − 7) : 4 ∙ 6
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40 − 3 ∙ 12 + 120 : 5
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(3 ∙ 2 − 15 : 3) : 4 + 1
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3 ∙ [5 + 2 ∙ (6 − 5)]
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[18 + 15 − (4 − 2)] ∙ 3
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66 : {3 + [5 · (4+2)]}
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90 : (−15) − (− 48) : (−12)
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$\frac{35-20}{2+3}$
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$\frac{3 \cdot 5+8:2+5}{30:5 \cdot 3}$
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