Penjelasan dengan langkah-langkah:
5. 17²-(-21)² = 289 - (441)= -152
6. 21-(-9)÷5×9 = 21-(-45)×9 = 21-(-405)= 21+405 = 426
7. -71- 41×14÷6 = -71- 574 ÷ 6 = -71 - 95.6 = -166.6
8. 99 + 15 × 3 -45 = 99 + 45 -45 = 99
9. -1.90 × 0.8 = -1.52
10. 0.73 + 0.54 ÷ 0.2 = 0.73 + 0.27 = 1
maaf kalau salah
Jawaban:
5. 17² - (-21)² = 76
6. 21 - (-9) : 5 × 9 = -340,2
7.-71 - 41 × 14 ÷ 6 = 166,6
8.99 + 15 × 3 - 45 = 99
9.-1,90 × 0,8 = -1,52
10.0,73 + 0,54 ÷ 0,2 = 3,43
5.17 × 2 = 34
-21 × 2 = -42
34 - (-42) = 76
6.21 - (-9) = -189
-189 ÷ 5 = -37,8
37,8 × 9 = 340,2
7.-71 - 41 = -112
-112 × 14 = -645
-645 ÷ 6 = -166,6
8.99 + 15 = 114
114 × 3 = 144
144 - 45 = 99
9.-1,90 × 0,8 = 1,52
10.0,73 + 0,54 = 1,27
1,27 ÷ 0,2 = 3,43
Maaf kalo ada yang salah
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Penjelasan dengan langkah-langkah:
5. 17²-(-21)² = 289 - (441)= -152
6. 21-(-9)÷5×9 = 21-(-45)×9 = 21-(-405)= 21+405 = 426
7. -71- 41×14÷6 = -71- 574 ÷ 6 = -71 - 95.6 = -166.6
8. 99 + 15 × 3 -45 = 99 + 45 -45 = 99
9. -1.90 × 0.8 = -1.52
10. 0.73 + 0.54 ÷ 0.2 = 0.73 + 0.27 = 1
maaf kalau salah
Jawaban:
5. 17² - (-21)² = 76
6. 21 - (-9) : 5 × 9 = -340,2
7.-71 - 41 × 14 ÷ 6 = 166,6
8.99 + 15 × 3 - 45 = 99
9.-1,90 × 0,8 = -1,52
10.0,73 + 0,54 ÷ 0,2 = 3,43
Penjelasan dengan langkah-langkah:
5.17 × 2 = 34
-21 × 2 = -42
34 - (-42) = 76
6.21 - (-9) = -189
-189 ÷ 5 = -37,8
37,8 × 9 = 340,2
7.-71 - 41 = -112
-112 × 14 = -645
-645 ÷ 6 = -166,6
8.99 + 15 = 114
114 × 3 = 144
144 - 45 = 99
9.-1,90 × 0,8 = 1,52
10.0,73 + 0,54 = 1,27
1,27 ÷ 0,2 = 3,43
Maaf kalo ada yang salah