题目内容
______÷20=
=36:______=______折=______%.
117 |
260 |
(1)
=117÷260=(117÷13)÷(260÷13)=9÷20;
(2)
=117:260=9:20=(9×4):(20×4)=36:80;
(3)(4)
=117÷260=0.45=45%=4.5折;
所以 9÷20=
=36:80=4.5折=45%;
故答案为:9,80,4.5,45.
117 |
260 |
(2)
117 |
260 |
(3)(4)
117 |
260 |
所以 9÷20=
117 |
260 |
故答案为:9,80,4.5,45.
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