问题 解答题
用你喜欢的方法计算下列各题(最后四题用简便方法计算).
1575-635+2659800÷(49×25)240÷80+71×12(57×35+43×35)÷14150+42×37
480-(32+32÷4)125×5635×99+35790-218-8210200÷4÷25.
答案

(1)1575-635+265,

=940+265,

=1205;

(2)9800÷(49×25),

=9800÷1225,

=8;

(3)240÷80+71×12,

=3+852,

=855;

(4)(57×35+43×35)÷14,

=(1995+1505)÷14,

=3500÷14,

=250;

(5)150+42×37,

=150+1554,

=1704;

(6)480-(32+32÷4),

=480-(32+8),

=480-40,

=440;

(7)125×56,

=125×8×7,

=1000×7,

=7000;

(8)35×99+35,

=(99+1)×35,

=100×35,

=3500;

(9)790-218-82,

=790-(218+82),

=790-300,

=490;

(10)10200÷4÷25,

=10200÷(4×25),

=10200÷100,

=102.

单项选择题
单项选择题