问题 计算题
用简便方法计算下面各题。
(1)32×46+32×54(2)6.46-3.54-2.46(3)99×48+48
(4)125×7×5×8(5)1600÷25(6)4300÷125÷8
(7)25.23-7.25-2.15(8)4.45+9.65+5.55+2.35
答案

(1)32×46+32×54

 =32×(46+54)

 =3200(2)6.46-3.54-2.46

 =6.46-2.46-3.54

 =0.46(3)99×48+48

 =48×(99+1)

 =4800

(4)125×7×5×8

 =125×8×7×5

 =35000(5)1600÷25

 =16×100÷25

 =64(6)4300÷125÷8

 =4300÷(125×8)

 =4.3

(7)25.23-7.85-2.15

 =25.23-(7.85+2.15)

 =15.23(8)4.45+9.65+5.55+2.35

 =(4.45+5.55)+(9.65+2.35)

 =22

单项选择题
单项选择题