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1. 74.578 + 61.492 - 46.393

136.070 - 46.393

89.677


2. 642 ÷ 6 × 79

107 × 79

8.453


3. 432 ÷ (-9) × (-28) ÷ 4

(-48) × (-7)

336


8. 42.875 + 7.778

50.653 (diakarkan pangkat 3)

37^3

9. 1,06; 160%; 7/4; 1 4/6

106/100, 160/100, 7/4, 10/6

106×100×4×6/100×100×4×6, 160×100×4×6/100×100×4×6, 7×100×100×6/4×100×100×6, 10×4×100×100/6×4×100×100,

254.400/240.000, 384.000/240.000, 420.000/240.000, 400.000/240.000,

254.400/240.000, 384.000/240.000, 400.000/240.000, 420.000/240.000,

1,06; 160%; 1 4/6; 7/4


10. 3 1/2 - 4/5 - 1 3/4

7/2 - 4/5 - 7/4

7×5×4/2×5×4 - 4×2×4/5×2×4 - 7×5×2/4×5×2

140/40 - 32/40 - 70/40

38÷2/40÷2

19/20


11. 173,4 - 85,627 - 4,521

87,773 - 4,521

83,252


12. 4 1/2 ÷ 5/6 ÷ 3/5

9/2 ÷ 5/6 ÷ 3/5

9/2 × 6/5 × 5/3

9×6×5/2×5×3

270÷10/30÷10

27÷3/3÷3

9/1

9

3
13. 45% - 0,15

45/100 - 15/100

30÷10/100÷10

3/10


14. 5 1/2 - 2 2/5 - 3/4

11/2 - 12/5 - 3/4

11×5×4/2×5×4 - 12×2×4/5×2×4 - 3×5×2/4×5×2

220/40 - 96/40 - 30/40

94÷2/40÷2

47/20 m atau 2 7/20 m