1. -1÷(-1⼀8)-3×(-1⼀2) 2. -1又3⼀4-2又1⼀3÷【-2⼀3】×(-3)

2024-11-02 23:29:36
推荐回答(2个)
回答1:

1. -1÷(-1/8)-3×(-1/2)
=-1×(-8)+3/2
=8+1.5
=9.5

2. -1又3/4-2又1/3÷【-2/3】×(-3)
=-7/4-5/3×(-3/2)×(-3)
=-7/4-15/2
=-7/4-30/4
=-37/4
=-9.25

3. -2的2次方-(-3)的3次方×(-1)的4次方-(-1)的5次方
=-4-(-27)×1+1
=-4+27+1
=25

4. -9÷3+(1/2-2/3)÷12+3的2次方
=-3+(3/6-4/6)×1/12+9
=6-1/72
=5又72分之71

5.(-2)的2次方-2的2次方-/-1/4/×(-10)的2次方
=4-4-1/4×100
=-25

回答2:

1. -1÷(-1/8)-3×(-1/2)
=-1×(-8)+3/2
=8+1.5
=9.5

2. -1又3/4-2又1/3÷【-2/3】×(-3)
=-7/4-5/3×(-3/2)×(-3)
=-7/4-15/2
=-7/4-30/4
=-37/4
=-9.25

3. -2的2次方-(-3)的3次方×(-1)的4次方-(-1)的5次方
=-4-(-27)×1+1
=-4+27+1
=25

4. -9÷3+(1/2-2/3)÷12+3的2次方
=-3+(3/6-4/6)×1/12+9
=6-1/72
=5又72分之71