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练习十□算乘法参考答案:
1.
120150080032003503002400140072084667000288869100180040003.====
4.
246732424640900545476840.口算30x4=300x5=200x4=400x8=50x7=60x5=800x3=7x200=90x8=21x4=33x2=1000x7=14x2=11x8=23x3=20x5=300x6=800x5=.连一连^OOX^^00X2^.在里填上或“=”600x8Cj700x750x6Cj60x5300x40200x6600x40300x8400x706x400900x5C900+5002000+800Cj700x4800x5C3000+
100.计算30x4+126=300x5-768=120x4-56=400-320x8=50+100x6=60x5+245=200x3-124=7x200-80=导学点睛整
十、整百数乘一位数可按照一位数乘一位数计算,再把结果末尾添上一个或两个0两、三位数乘一位数,先从个位乘起先计算出O两边算式的得数再比较大小要分清先算什么,再算什么。