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先说说下面各题的运算顺序,再用递等式进行计算.(1)462÷3+66÷22(2)66-462÷22÷3(3)947+164×60÷82(4)993-2604÷14+549.
题目详情
先说说下面各题的运算顺序,再用递等式进行计算. (1)462÷3+66÷22 (2)66-462÷22÷3 (3)947+164×60÷82 (4)993-2604÷14+549. |
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答案和解析
(1)462÷3+66÷22, =154+3, =157; (2)66-462÷22÷3, =66-21÷3, =66-7, =59; (3)947+164×60÷82, =947+9840÷82, =947+120, =1067; (4)993-2604÷14+549, =993-186+549, =807+549, =1356. |
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