a/ / – 17 / – 23 + 33 – 18 -22 – 46
b/ 18 + 27 – / – 13 / – 27 – [ 17 – 9]
c/ 15 x 23 – 15 x [ -15 ] – 15 x 18
d/ 16 – / – 35 / – 37 + 37 + 35
a/ / – 17 / – 23 + 33 – 18 -22 – 46
b/ 18 + 27 – / – 13 / – 27 – [ 17 – 9]
c/ 15 x 23 – 15 x [ -15 ] – 15 x 18
d/ 16 – / – 35 / – 37 + 37 + 35
a) | -17| -23 +33 -18 -22 -46
= 17 -23 +33 -18 -22 -46
= -59
b) 18 + 27- |-13| -27 -(17 -9)
= 18 +27 – 13 -27 – 8
= -3
c) 15 × 23 -15 ×(-15) -15 × 18
= 15 ( 23 + 15 -18 )
= 15 × 20
= 300
d) 16- |-35| -37 + 37 +35
= 16 -35 -37 + 37 + 35
= 16
Đáp án:
Giải thích các bước giải:
`a, |- 17| – 23 + 33 – 18 – 22 – 46`
`= 17 – 23 + 33 – 18 – 22 – 46`
`= (17 + 33) – (18 + 22) – (46 – 23)`
`= 50 – 40 – 23`
`= -13`
`b, 18 + 27 – |- 13| – 27 – (17 – 9)`
`= 18 + 27 – 13 – 27 – 8`
`= (18 – 8) + (27 – 27) – 13`
`= 10 + 0 – 13`
`= -3`
`c, 15 . 23 – 15 . (-15) – 15 . 18`
`= 15 . (23 + 15 – 18)`
`= 15 . 20`
`= 300`
`d, 16 – |- 35| – 37 + 37 + 35`
`= 16 – 35 – 37 + 37 + 35`
`= 16 – (35 – 35) – (37 – 37)`
`= 16 – 0 – 0`
`= 16`
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