初一数学有理数加减法计算题(有负数的)

只要加减法,要20道
2025-05-06 19:22:41
推荐回答(2个)
回答1:

(1)(+16)+(-29)-(+11)+(+9)
(2)(-3.1)-(-4.5) + (+4.4) - (+103) + (-2.5)
(3)(+21)-5+(-31)-(+41)+(-32)
(4)(-2.6)-(4.7)-(+0.5)+(+2.4)+(-3.2)
(5)(-6)-(+6)-(-7)
(6) 0-(+8)+(-27)-(+5)
(7) (-32)+(+0.25)+(-61)-(+21)
(8) (+353)+(+443)-(+152)+(-343)
(9) 10-[(-8)+(-3)-(-5)]
(10)-1-(6-9)-(1-13)
(11)[1.8-(-1.2+2.1)-0.2]-(-1.5)
(12) -30-(+8)-(+6)-(-17)
(13) -116 -97+94-115
(14) -40-28-(-19)+(-24)-(-32)
(15) 12-(-18)+(-7)-15
(16) -0.8-(-0.08)-(-0.8)-(-0.92)-(-9)
(17) (-2.5)+(+65)+(-21)+(+161)
(18) (3-6-7)-(-12-6+5-7)
(19) (-5)+13-(-5.8)-(-54)
(20) 9.3+(-7.2)-(+3)+5.2

回答2:

负负得正,就是负号当减号算
-82-70*45+100