3.19 x 3.19-1.81x 1.81÷
3.19-1.81
?
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Step-by-step explanation:
= 3.19 * 3.19-1.81 * 1.81/3.19-1.81
=(3.19 * 3.19)-1.81 * (1.81/3.19)-1.81
=10.1761-1.81 * 0.5674-1.81
=10.1761-(1.81 * 0.5674)-1.81
=10.1761-1.0270-1.81
=7.3391
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