3( )3( )3(
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3( )3( )3(
3( )3( )3(
3( )3( )3(
这个题有点问题;
(3×3+3)÷3=4 正确
3(×)3(+)3(÷)3=4 错误
根据先算乘除后算加减的运算法则
所以这道题是有问题的
3(×)3(+)3(÷)3=4
3×3+3÷3=4
(3x3+3)÷3=4
3( )3( )3(
算式运用符号3()3()3()3()3()3=100 3()3()3()3()3()3()3=1003()3()3()3()3()3()3()3=100 3()3()3()3()3()3()3()3()3=1003()3()3()3()
(1).(3)
,(2),(3)
(2) (3)
(2) (3)
(2)(3)
1 3(x+3)
3×(﹣6)^3
1 3(x+3)
找规律添数3,1,3,4,3,9,3,( ),3( ),3,( )
在下列括号里填上适应的运算符号,使等号两边相等3( )3( )3( )3=1 3( )3( )3( )3=7 3( )3( )3( )3=2 3( )3( )3( )3=8 3( )3( )3( )3=3 3( )3( )3( )3=9
在( )里填上适当的运算符号,使算式成立.3( )3( )3( )3=2 3( )3( )3( )3=3
)3( )3( )3=3、4、5、6、7 填加减乘除运算符号3()3()3()3=33()3()3()3=43()3()3()3=53()3()3()3=63()3()3()3=7
3()3()3()3=8 ()里添符号3()3()3()3=8()里添符号
2(x+3)(x-3)
3()3()3()3=5填运算符号或括号.还有3()3()3()3=7,3()3()3()3=2,3()3()3()3=4,3()3()3()3=6,3()3()3()3=8怎么写,快点回我!这是作业!
1.电子计算机体积( ),质量( ),便于( ),运算( ),操作( ),是一种很受欢迎的计算工具.2.( )是开机键,( )是关机键.3.3 3 3 3 3 3=1003 3 3 3 3 3 3=1003 3 3 3 3 3 3 3=1003 3 3 3 3 3 3 3 3=1003 3 3