题目内容

【题目】怎样算简便就怎样算.

(1)712 ﹣(1﹣ 14 )÷9

(2)3.6×( 23 + 16 ﹣ 34 )

(3)6.7× 35 +3.3÷ 53

(4)1÷ 14 ﹣ 14 ÷1

(5)13 ÷( 23 ﹣ 25 )× 35

(6)34 ÷(5﹣ 917 ﹣ 2517 )

【答案】(1)解: ﹣(1﹣ )÷9 = ×

=

=

(2)解:3.6×( + ) =3.6× +3.6× ﹣3.6×

=2.4+0.6﹣2.7

=0.3;

(3)解:6.7× +3.3÷ =6.7× +3.3×

=(6.7+3.3)×

=10×

=6;

(4)解:1÷ ÷1 =4﹣

=

(5)解: ÷( )× = × ×

=

(6)解: ÷(5﹣ ) = ÷3

= ×

=

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