问题
解答题
计算
①22×5÷(-4)
②(-2)3-(-4)×(-3)
③(-4)2÷42+3×(-6)
答案
①22×5÷(-4)
=4×5×(-
)1 4
=-5;
②(-2)3-(-4)×(-3)
=-8-12
=-20;
③(-4)2÷42+3×(-6)
=16×
+3×(-6)1 16
=1-18
=-17.
计算
①22×5÷(-4)
②(-2)3-(-4)×(-3)
③(-4)2÷42+3×(-6)
①22×5÷(-4)
=4×5×(-
)1 4
=-5;
②(-2)3-(-4)×(-3)
=-8-12
=-20;
③(-4)2÷42+3×(-6)
=16×
+3×(-6)1 16
=1-18
=-17.