计算:(1)-3+5.3+7-5.3(2)(-2)×32÷(-34)×4(3)-16-|-5|+2×(-12)2(4)(13-14)÷(-112)+(-3)3÷(-3)(5)-12+12÷[(-112)3+(-12)2]×|-2.52|-12.-数学
题文
计算: (1)-3+5.3+7-5.3 (2)(-2)×
(3)-16-|-5|+2×(-
(4)(
(5)-
|
答案
(1)-3+5.3+7-5.3 =-8.3+12.3 =4; (2)(-2)×
=2×
=16; (3)-16-|-5|+2×(-
=-1-5+2×
=-1-5+
=-5
(4)(
=﹙
=-4+3+9 =8; (5)-
|