1、807-669=842-579=345-278=77-56+32 96-38+26 79+19-36 68-36+36 30+(33-15) 9= 648= 3856= 459= 77=480-424=728-653=972-585=357-284=520-126= 39+3 93+23-94 4657 2045 6825 2553= 4235= 4771= 4663= 808=536+289=188+440=670+253=190+710=174+226=(58-34)3 84-67+16= 44+27-26 69+(25+24) 6(36) 2165= 3642= 5955= 7264=
2、4139=403-284=600-376=880-692=420-229=603-496=82 93+63+44 4495 6875 4439= 7266= 4352= 3528= 666=1010-835=1020-961=389+298=276+289=194+380=(7518)5 77-76+100 61-38+126 9654 22054 102= 7756= 568= 726= 142=156+433= 121+278= 350+163= 574+926= 693+445= 59-36+69 94-79+96 130-(93-29) 193-23+94 171-(25-24) 81
3、27= 103= 88= 322= 8059=428+572= 546+415= 328+356= 584+453= 496+397= 99+99-196 6287 9(455) 11996+33 1629+55 ( )6=54 427=( )-8 8556= 287=52-( ) ( )6=48263 256 445 190+910=234+926= (192)7 (364)87 32496 9942+33 4269+55 243= 369= 1818= 77= 6498+409=207+453= 265+485= 522+589= 368+540= 100-(23+29) 23+23+94
4、 293-(39-23) 99-(99-29)+99 99-36+29-29 9= 4646= 6565= 819= 5555=889+211=480+226= 432+311=672-252=510-185=82-22-22 42-(28-22) 99-(25-24) 88-86+22-22 68-28+26-26 8946= 1515= 99= 5842= 8068=615-447=814-579=603+687=622-555=930-666=559+641= 1689 (63)7 (4028)6 (4210)2 77-76+32-7 53360= 549= 405= 4=200 161
5、61=710-447=821-686=689+198= 655-424=516-309= 5389 98130 87230 68116 61-38+126 1515= 193= 4225= 1809= 180160=210-178=627-476=272= 615+243=646+176=363+578= (6650)8 64(44) 38-36+27+22 84-27+16-14 79+19-102 7260= 4758= 5485= 61127= 170120=463+578=803+287=646+176= 506-383=804-472=294+707= 55+27-16 93+23+
6、74 999-(39-23) 99+(55-24) 98-36+27 _一、口算510= 77= 7356= 600300= 1005= 366= 847080646+76三、脱式4 54(24) 38-36+57 84-27+36 79+19-26 8355= 59= 4327= 2157= 64711768433580-(2942) (2115)9 6686+54 (39-30)6+50 3030= 3636= 88= 51= 151=49599= 293=124+111+2648 875-547-223 95+614 (534-527)+621 45(247-238) 168= 426=
7、 40050= 3826= 938=627= 4564 80-1982 ( 2115)9 6489 8 (39-30)710= 5645= 357= 2525=406-387=503-307=586-308= 338+162-247=94677 20455 6855 (7568)7 99+(25-24)+55368= 8763= 99= 548= 704、竖式845-464=839-705=997-853=848-752=955-948=5、脱式87-46+22 62-38+63 74+29-66 99-(39-33) (26)9 8= 4646= 205= 4444= 4545=635-562=925-847=807-649=801-579=845-678=77-56+5 61-48+46 79+29-46 58-46+27 60+(63-19) 72= 5656= 6666= 4545= 7580-424=928-553=972-785=657-584=520-426=9+63 193+53+194 4977 5175 69225
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