a)-|-33|+(-12)+18+|45-40|-57
=-33-12+18+|5|-57
=-45+18+5-57
=-27+5-57
=-22-57
=-79
b)|40-37|-|13-52|
=|3|-|-39|
=3-39
=-36
a)-|-33|+(-12)+18+|45-40|-57
=-33-12+18+|5|-57
=-45+18+5-57
=-27+5-57
=-22-57
=-79
b)|40-37|-|13-52|
=|3|-|-39|
=3-39
=-36
a)|0|+|45|+(-|-455)|+|796|
b)-|-33|+(-12)+18+|45-40|-57
c)|40-37|-|13-52|
| 0 | + | 45 | +( - | - 455 ) | + | - 796 |
- | - 33 | + ( - 12 ) + 18 + | 45 - 40 | - 57
| 40 - 37 | - | 13 - 52 |
Làm nhanh mk k !
a,(-123)+|-13|+(-7)
b,-|-33|+(-15)+20-|45-40|-57
c,9.|40-37|_2.13-52|
d,12+15+18+...+90
e,140:{80-[130-(12-4)^2]}
giúp mk với
1/ Tinh nhanh
a/ 48 .45 + 55 . 48
b/ 57 . 37 + 57 . 23 + 57 . 40
c/ 25 . 5 . 4 . 17 . 2
d/ 127 . 45 + 55 . 127 - 27 . 100
e/ 543 + 165 + 457 + 35
g/ 13 . 58 . 4 + 32 . 26 . 2 + 52 . 10
h/ 25 . 5 . 4 . 17 . 2
k/ (3737 . 43 - 4343 . 37 ) : ( 2 + 4 + 6 + ... + 100 )
i/ 1 + 5 + 9 + ... + 29 + 33 + 37
Giup mik bai nay nha,Thank cac ban nhieu
/40-37/-/13-52/
/40-37/-/13-52/
B=11/13×40/13+37/5÷7/33-(11/13+33/7÷5/2)
Tính quý giá biểu thức
a) 2 + 4 + 6 + 8 +… + 34 + 36 + 38 + 40
b) 3 + 5 + 7 + … + 35 + 37 + 39 + 41
c) 3 + 6 + 9 + 12 + … + 45 + 48 + 51
d) 4 + 8 + 12 + 16 + … + 40 + 44 + 48 + 52
i) 10^2-60:(5^6:5^4-3.5)
j)2345-1000:[19-2(21-18)^2]
k)205-[1200-(4^2-2.3)^3]:40
l)500-{5[409-(2^3.3-21)^2]+10^3}:15
n)(-23)+13+(-17)+57
o)(-123)+ -13+(-7)
p)-10+45+ (- -455) + -750
h)9.40-37-2.13-52