|40-37|-|13-52|
/40-37/-/13-52/
Ta có: |40 - 37| - |13 - 52|
= 3 - 39
= -36
/40-37/-/13-52/
|40 - 37| - |13 - 52|
= 3 - 39
= -36
a)-|-33|+(-12)+18+|45-40|-57
b)|40-37|-|13-52|
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|
a)|0|+|45|+(-|-455)|+|796|
= 0+45+(-455)+796
=45-455+796
=-410+796
=386
b)-|-33|+(-12)+18+|45-40|-57
=-33-12+18+|5|-57
=-45+18-5-57
=-33-5-57
=-38-57
=-95
c)|40-37|-|13-52|
=|13|-|-39|
=13-39
=-38
| 0 | + | 45 | +( - | - 455 ) | + | - 796 |
- | - 33 | + ( - 12 ) + 18 + | 45 - 40 | - 57
| 40 - 37 | - | 13 - 52 |
Làm nhanh mk k !
|0| + |45| + (-|-455)| + |-796|
= 0 + 45 - 455 + 796
= 386
-|-33 | + (-12) + 18 + |45 - 40| - 57
= -33 - 12 + 18 + 5 - 57
= -79
|40 - 37| - |13 - 52|
= |3| - |-39|
= 3 - 39
= -36
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
\(\text{(-123) +|–13| +(-7)}\)
\(\text{= (-123) + 13 + (-7)}\)
\(\text{= (-110) + (-7)}\)
\(=\text{(-117)}\)
b
9.|40-37| - |2.13-52|
9.|40-37|-|2.13-52|
=9.|3|-|26-52|
=9.3-|-26|
=27-26=1
9*|37-40|-3*|-52+43|
52 x 37 +26 x 26 - 40 x 58
=26x74+26x26-40x58
=26x100-100x23.2
=100x2.8
=280