四年级数学上册简便计算练习题.doc

四年级数学上册简便计算练习题? 一、简便计算练习题? (1)?775－(218+75)?????????? (2) ????221+38+162???????? ??(3)??306－38－262??????????????????????? (4)?235－183－17????????? (5)234-55-45????? (6)???279-73-127??????????? (7)273-128-62?? (8)89-（89+215）???? (9)679-（213+79）????(10)?? 578－176－324???? (11) ?123+285+177?? (12)35×37+65×37???? (13)75×27+25×27???? (14) 38×101－38? (15) 16×2+16×3+16×5 ??(16)178×101－178????? ??(17)? 84×36+64×84????????? ? (18)7 5×89+11×75???? (19) 178×99+178??? (20)37×83+17×37????? ??? (21)19×103－19×3????? (22) ?99×38+38??????? (23) 23×41+59×23?? (24)4×?12×25??????? ?(25)125×?16×8???? ?(26)???4×8×25×125?????? (27)?125×88（两种方法）????????(28)??????38×2×50????? (29)???5×216×2????????? ??(30)25×36??????? ?? ?(31)25×44（两种方法）?? (32)153+262+138????????? ??(33)?375+219+381+225???? ????? ?(34) 525－35－165??? ?(35)（181+264）+219??? ?(36) ?????378+44+222????? ?(37) ??276+228+24+272??? ?(38)135×6+65×6????? ???(39) 99?×53+53?????? ?(40) 47?×99+47??????? ?(41) ?36?×29+36?????? ?(42) 38×41+59×38??????? ?(43) 58×99+58??????? ?(44) 138×72－72×38??? ?? (45)??23×83+17×23 ?(46) 42×103－42×3????? ? ???(47)??25×62×4????? ???? ??(48) 99×38+38????????? ?(49) ??125×43×8 ??(50)（40+4）×25???? ? ?(51)（8+6）×125???? (52)?（80+8）×125??? (53) ???36×（30+3）?? (54)25×（8+40）?? ?(55) 125×（8+4）?? ?(56) 63×99?????? (57)? 28×201????? ????? ??(58)??18×199????????? ???(59)?????68×11????? ( 60)?? ?38×102??? ( 61)??35×98????????????? ( 62)?? ?57×101???????? ???( 63)????46×101????????? ( 64)?? ??37×99?? ( 65)??25×36×4????? ?? ?( 66)??（25+4）×40???? ( 67)????36×57+36×43????? ( 68)?27×102-27×2?????? ( 69)?? 16×99? ( 70)??????37×101???? ?? ( 71)??53+262+38?? ?( 72)?100÷25÷4?????????? ??