题目内容
【题目】脱式计算(能简算的要简算)
(1)
+5.36+
+4.64
(2)17255÷85×49﹣749
(3)21×
+48×12.5%+11×![]()
(4)(
×
+
)×![]()
(5)[2
+(5.4﹣3
)×1
]÷3![]()
(6)5
﹣(1
+3
)
【答案】11;9198;10;
;
;
.
【解析】解:(1)
+5.36+
+4.64
=
+
+(4.64+5.36)
=1+10
=11;
(2)17255÷85×49﹣749
=203×49﹣749
=9947﹣749
=9198;
(3)21×
+48×12.5%+11×![]()
=(21+48+11)×![]()
=80×![]()
=10;
(4)(
×
+
)×![]()
=(
+
)×![]()
=
×![]()
=
;
(5)[2
+(5.4﹣3
)×1
]÷3![]()
=[2
+
×
]÷3![]()
=[2
+
]÷3![]()
=
×![]()
=
;
(6)5
﹣(1
+3
)
=5
﹣5![]()
=
.
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