8. 3.240
9. 579
10. [tex] \frac{21}{25} [/tex]
11. 4⅝
12. 9 : 20
Penjelasan dengan langkah-langkah:
8. 162 x (62 - 42) = 162 x 20 = 3.240
9. [tex]{24}^{2} + \sqrt[3]{3.375} \div \sqrt{25} [/tex]
= 576 + 15 ÷ 5 = 576 + 3 = 579
10. [tex] \frac{42}{50}[/tex] sama-sama dibagi dengan 2 = [tex] \frac{21}{25} [/tex]
11. 6⅝ + 1¼ - 3¼ = (6 + 1 - 3) + (⅝ + ¼ - ¼)
= 4 + ⅝ = 4⅝
12. 27 : 60 sama-sama dibagi 3 = 9 : 20
8. 3.240
162 × (62 - 42)
= 162 × 20
= 3.240
9. B
[tex] {24}^{2} + \sqrt[3]{3.375} \div \sqrt{25} \\ = 576 + 15 \div 5 \\ = 576 + 3 \\ = 579[/tex]
10.
[tex] \frac{42}{50} \\ = \frac{21}{25} \\ [/tex]
11.
[tex]6 \frac{5}{8} + 1 \frac{1}{4} - 3 \frac{1}{4} \\ = \frac{53}{8} + \frac{5}{4} - \frac{13}{4 } \\ = \frac{53}{8} + \frac{10}{8} - \frac{26}{8} \\ = \frac{37}{8} \\ = 4 \frac{5}{8} [/tex]
12.
27 : (27+33)
= 27 : 60
= 9 : 20
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