8x229X125的简便方法(
8x229X125的简便方法? -
简便方法可以运用乘法的交换律来解决:8×229×125 =8×125×229 =1000×229 =229000
=(8x125)x579 =1000x579 =579000
简便方法可以运用乘法的交换律来解决:8×229×125 =8×125×229 =1000×229 =229000
=(8x125)x579 =1000x579 =579000
原式=8*125*27 =1000*27 =27000
=8x125x36 =1000x36 =36000
992x125的简便方法? -
992×125的简便算法是:1000-8)×125=125000-1000=124000。
192x25x125用简便方法怎么算192x25x125 =25*125*4*8*6 =(25*4)(125*8)6 =6*100*1000 =600000
8x25x4x125简便方法 -
= (8×125)×(25×4)=1000×100 =100000
(11111x8)x125
88x125=用简便方法怎算 -
88x125 =11×8×125 =11×1000 =11 000
6666×6666=3333×2×3×2222=9999×4444=4444×10000-4444×1=44440000-4444=44435556 229×(125×8)×(25×4)229×1000×100=22900000 42×48=4×(4+1)×100+2×8=2016 63×67=6×(6+1)×100+3×7=4221 150÷5=(150×2)÷(5×2)300÷10=30 还有呢?