问题
解答题
计算: (1)-41-29-(-20)×2+33 (2)(
|
答案
(1)-41-29-(-20)×2+33
=-41-29+40+33
=-70+73
=3;
(2)(
+3 4
-5 6
)÷1 12 1 24
=(
+3 4
-5 6
)×241 12
=
×24+3 4
×24-5 6
×241 12
=18+20-2
=36.
计算: (1)-41-29-(-20)×2+33 (2)(
|
(1)-41-29-(-20)×2+33
=-41-29+40+33
=-70+73
=3;
(2)(
+3 4
-5 6
)÷1 12 1 24
=(
+3 4
-5 6
)×241 12
=
×24+3 4
×24-5 6
×241 12
=18+20-2
=36.