问题
解答题
用计算器计算 (1)-10+8÷(-2)2-3×(-4); (2)(-
(3)24×(3.17-1.25)2+35.43. |
答案
(1)-10+8÷(-2)2-3×(-4)
=-10+8÷4-(-12)
=-10+2+12
=4;
(2)原式=(-
-1 6
+1 36
-3 4
)×(-48)1 12
=8+
-36+44 3
=-22
;2 3
(3)原式=16×(1.92)2+35.43
=16×3.6864+35.43
=58.9824+35.43
=94.4124.