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
3×9= 34-5= 3×4= 62+38= 91-1= 3×2= 100-25= 3×1= 86-38= 74-34= 4×6= 58-23= 24-23= 4×8= 51-18= 73-49= 4×3= 51-7= 96-60= 74-66= 7×1= 83-24= 32-13= 4×2=
94-63= 4×6= 60-21= 99-49= 2×9= 97-32= 26-24= 75+6= 3×7= 67-53= 79-75= 1×6= 10+21= 100-3= 1×7= 16+31= 58-48= 42-37= 1×1= 72-37= 3×1= 42+24= 20+40= 3×2=
18+48= 4×8= 96-69= 2×9= 18+71= 1×3= 52-25= 38-11= 4×9= 56-33= 86-66= 2×5= 13+63= 84-40= 1×3= 93-61= 95-93= 3×2= 18+23= 9+47= 1×3= 75-41= 76-8= 2×7=
3
91-37= 1×2= 14+83= 95-2= 65-37= 3×5= 64-6= 75+6= 1×4= 94-53= 80-2= 3×3= 73-63= 49-38= 3×9= 62-48= 1×9= 36-7= 66+9= 93-4= 2×9= 77-52= 45+1= 1×2=