A-A+
脱式计算(1)49×37×13(2)112×12(3)36×(14+518)(4)10.5÷
问题详情
(1)49×
参考答案
(1)49×37×13,
=49×(37×13),
=49×17,
=7;
(2)112×12=1;
(3)36×(14+518),
=36×14+36×518,
=9+10,
=19;
(4)10.5÷10.5×710,
=1×710,
=710;
(5)(1+34)÷(1-34),
=134÷14,
=7;
(6)2.5×313×0.4×310,
=(2.5×0.4)×(313×310),
=1×1,
=1;
(7)710×516÷2132,
=732÷2132,
=13;
(8)(710-710×27)÷14,
=(710-15)÷14,
=12÷14,
=2;
(9)1.4×3.7+3.7×8.6,
=(1.4+8.6)×3.7,
=10×3.7,
=37.
考点: