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Matematika
OCIIII1
Pertanyaan
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1 Jawaban
-
1. Jawaban Sharon
1.
a. 42 : 7 x 3
= 6 x 3
= 18
b. 15 + 24 : 3 - 1 x 6
= 15 + 8 - 1 x 6
= 15 + 8 - 6
= 23 - 6
= 17
c. - 11 x (-1) + (-21) + 3
= 11 + (-21) + 3
= -10 + 3
= -7
d. -5 -(-48) : (-16) + (-2) x 6
= -5 - 3 + (-2) x 6
= -5 - 3 + (-12)
= -5 - 15
= -20
e. -3 + (-12) : (-4)
= -3 + 3
= 0
f. 81 : 3 x 3 x 9
= 27 x 3 x 9
= 81 x 9
= 729
g. 35 - 6 x 6 + 1
= 35 - 36 + 4
= 35 - 32
= 3
h. 30 - 5 x 2 x 3 + (19 - 3) : 8
= 30 - 5 x 2 x 3 + 16 : 8
= 30 - 10 x 3 + 16 : 8
= 30 - 30 + 16 : 8
= 30 - 30 + 2
= 30 - 28
= 2
i. 4 x 7 - 17 : 1 + 11
= 28 - 17 : 1 + 11
= 28 - 17 + 11
= 28 - 6
= 22
j. - 16 x (-3) + 86 : 4
= 48 + 86 : 4
= 48 + 21,5
= 69,5
2.
a. 15 - {6 + (18 - 14)}
= 15 - {6 + 4}
= 15 - 10
= 5
b. 16 - [11 - {8 : (17 + 3 x 2 - 19)}]
= 16 - [11 - { 8 : (17 + 6 - 19)}]
= 16 - [11 - {8 : (23 - 19)}]
= 16 - [11 - {8 : 4}]
= 16 - [11 - 2]
= 16 - 9
= 7
c. (18 - 11) + {1 + (15 - 2) x 4}
= 7 + {1 + 13 x 4}
= 7 + {1 + 52}
= 7 + 53
= 60
d. 8 + {15 - 7 - (2 - 6)} - 14 : 7
= 8 + {15 - 7 - (-4)} - 14 : 7
= 8 + {8 + 4} - 14 : 7
= 8 + 12 - 14 : 7
= 8 + 12 - 2
= 20 - 2
= 18
e. 3 - [3 - {3 - (3 - 3 - 3}]
= 3 - [3 - (-3)]
= 3 - [3 + 3]
= 3 - 9
= -6
Semoga membantu