Simplify: 0.35 × 2 + 0.25 × 3 - 0.3 × 1.5

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Solution

The correct option is D 1
$\begin{matrix} 0.35 \times 2 + 0.25 \times 3 - 0.3 \times 1.5 & = & \frac{35}{100} \times 2 + \frac{25}{100} \times 3 - \frac{3}{10} \times \frac{15}{10} = & \frac{70}{100} + \frac{75}{100} - \frac{45}{100} = & \frac{70 + 75 - 45}{100} = & \frac{100}{100} = & 1 \end{matrix}$

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Similar questions

Simplify

(i) ${(\frac{3}{2} x - 0.45 y)}^{2}$

(ii) $(0.3 x - 0.2 y) (0.9 a - 0.02 b)$

(iii) $(0.3 a - 0.2 b) (0.09 a^{2} + 0.06 a b + 0.04 b^{2})$

(iv) ${(0.7)}^{3} + {(0.3)}^{3} + 3 \times 0.7 \times 0.3 (0.7 + 0.3)$

(v) ${(3.5)}^{3} - {(1.5)}^{3} - 3 \times 3.5 \times 1.5 (3.5 - 1.5)$

Question 4(v)
Simplify:
$(2.5 p - 1.5 q)^{2} - (1.5 p - 2.5 q)^{2}$

Q. Simplify:

(0.7)^{3} + (0.3)^{3} + 3 \times 0.7 \times 0.3 (0.7 + 0.3)

Q. Which is larger:

{0.25}^{4}

{0.35}^{3}

Q. Simplify:

(3.5)^{3} - (1.5)^{3} - 3 \times 3.5 \times 1.5 (3.5 - 1.5)

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Simplify: 0.35 × 2 + 0.25 × 3 - 0.3 × 1.5

The correct option is D 10.35×2+0.25×3−0.3×1.5=35100×2+25100×3−310×1510=70100+75100−45100=70+75−45100=100100=1