来自李多的问题
①|-45|+(-71)+|-5|+(-9)②(-53)+(+21)-(-69)-(+37)③-14+÷[3-(-2)2]
① |-45|+(-71)+|-5|+(-9)② (-53)+(+21)-(-69)-(+37)
③ -14+÷[3-(-2)2]
2回答
2019-11-12 06:31
①|-45|+(-71)+|-5|+(-9)②(-53)+(+21)-(-69)-(+37)③-14+÷[3-(-2)2]
① |-45|+(-71)+|-5|+(-9)② (-53)+(+21)-(-69)-(+37)
③ -14+÷[3-(-2)2]
1.
45-71+5-9=-30
2.
-53+21+69-37=0
3.
-14/(3-4)=14
你好积极啊