So how to use the M + on the calculator? For example, how to solve the following problem: 3.5 × 8 + 4.5 × 3 + 4 × 4 + 10.5 × 5... I'm wrong

Calculators do not follow the four algorithms. First, we decompose the formula, first calculate the multiplication and division results, then store the result of the fraction in the calculator through M + or M -, and finally get the final value according to MRC. For example, the above formula: first decompose it into 3.5 × 8, 4.5 × 3, 4 × 4, 10.5 × 5, etc., calculate 3.5 × 8 to get 28, then press m + directly, and then 4

(LG √ 2) &?

(lg√2)²
=（½lg2）²
=¼(lg2)²

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