问题
填空题
|
答案
(1)(4+10)×25
=4×25+10×25
=100+250
=350;
(2)36×57+64×57
=(36+64)×57
=100×57
=5700;
(3)17×39+17×31
=17×(39+31)
=17×70
=1190;
(4)34×301
=34×300+34×1
=10200+34
=10234.
|
(1)(4+10)×25
=4×25+10×25
=100+250
=350;
(2)36×57+64×57
=(36+64)×57
=100×57
=5700;
(3)17×39+17×31
=17×(39+31)
=17×70
=1190;
(4)34×301
=34×300+34×1
=10200+34
=10234.