2015小學二年級數(shù)學上冊口算練習題

62－7 = 94+6= 63+9 = 40－9+12=
    84－70= 15+40 = 76－6 = 50+3－16=
    58+24= 70－2= 29+5 = 42－3 +25=
    51－6 = 26+70 = 44－8= 32－7 +48=
    6+40 = 63+8= 63－8 = 9+19+50=
    62－4 = 34+7 = 50－3 = 38+7－6=
    24+9 = 40－8= 8+ 37 = 46－20 +72=
    9+70 = 61－7 = 80－70 = 16+80－15=
    30－6 = 3+48 = 52－9 = 30+25 －16=
    18+7 = 74－40 = 80－2 = 72+8 －40=
    57+6= 28－14= 75－36= 35+19－19=