帮助掌握100以内两个数加减和4×9以内乘法口算,并熟练运用加、减和乘法运算
69-19= 2×8= 28+37= 16+21= 25+45= 7×1= 59-21= 82-24= 80-7= 72+7= 1×9= 76-34= 93-77= 4×1= 30+15= 10+73= 2×3= 9+25= 78-68= 3×3= 65+13= 67-4= 3×6= 67-28=
45+41= 2×6= 75-2= 51-4= 1×5= 86-32= 10-2= 17+74= 58-29= 3×6= 75-17= 28+42= 57+33= 1×1= 92-70= 76+22= 3×9= 60-56= 83-53= 4×6= 10+49= 27-1= 3×5= 1×1=
85-31= 4×1= 48+7= 71-11= 4×6= 18+33= 58+34= 4×2= 98-20= 4+23= 88-57= 2×1= 85-55= 12+51= 83-62= 4×6= 65-15= 1×6= 59-16= 95-63= 2×7= 43-5= 95-81= 4×7=
4×7= 91-85= 85-6= 4×6= 61-16= 18-4= 63-15= 65-35= 3×3= 33+10= 81+16= 4×7= 8+9= 61-47= 37+22= 27-3= 4×2= 54+44= 10+25= 4×5= 78-69= 65+14= 1×2= 67-4=
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