Question

[5×10^1+7×10^0+2+×10^-1+5×10^-2]-[3×10^1+4×10^0+5+10^-2]​

Answer 1

Step-by-step explanation:

$(5 \times {10}^{1} + 7 \times {10}^{0} + 2 \times {10}^{ - 1} + 5 \times {10}^{ - 2} ) - (3 \times {10}^{ - 1} + 4 \times {10}^{0} + 5 + {10}^{ - 2} )$

$(5 \times 10 + 7 + 2 \times \frac{1}{10} + 5 \times \frac{1}{100} ) - (3 \times 10 + 4 + 5 + \frac{1}{100}$

$(50 + 7 + 5 + \frac{1}{20} ) - (30 + 4 + 5 + \frac{1}{100} )$

$62 + \frac{1}{20} - 39 + \frac{1}{100}$

$\frac{100 \times 62 + 5 \times 1 - 100 \times 39 + 1}{100}$

$\frac{6200 + 5 - 3900 + 1}{100}$

$\frac{6205 - 3800}{100}$

$\frac{1405}{100}$

so the answer is 14.05

$\huge{\red{\bold{\underline{\underline{\mathcal{14.05}}}}}}$

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