小学二年级数学上册口算300道)
54+45=66-33=88-44=93-93=56+0=24+35=9+89=30+56=85-8=44-9=60-40=50+25=39-7=43+8=8+56=16+40=2+89=70+8=8
54+45= 99-4= 23-5= 78-61= 75-72= 66-33= 23+8= 3×6= 64-56= 87-77= 88-44= 4×3= 36+40= 87-44= 43+41= 93-93= 7+55= 42-3= 43-22= 59+31= 56+0= 3×1= 1×8= 74-50= 26-13= 24+35= 6×2= 58-5= 6×1= 98-23= 9+89= 4×6= 53-9= 10+46= 60+26= 30+56= 34-6= 3×9= 11+44= 97-49= 85-8= 5×5= 2+74= 39-7= 81-12= 44-9= 4×2= 60+38= 54+46= 91-51= 60-40= 4×5= 8×2= 6×5= 27+40= 50+25= 46-6= 20-7= 23-5= 67-41= 39-7= 6+5= 2×6= 3×6= 69+16= 43+8= 60-7= 9×4= 36+40= 63-19= 8+56= 6×5= 5+55= 42-13= 61-7= 16+40= 67-9= 18+6= 88-10= 42+46= 71+3= 2+89= 18+79= 66+4= 88-10= 42+26= 70+8= 2×5+30= 14+9= 91-9= 70-54= 8+27= 60-15+7= 13-6= 38-5= 58-17= 58-23= 2+6+13= 15+45= 79-53= 39+56= 69-28= 5×6-6= 72+13= 72-48= 59+38= 58-30= 24+7-8= 51+46= 32+49= 6+73= 37+9= 6×6-9= 1×5= 79-28= 48-48= 30+19= 5×2+19= 97-50= 89-14= 17+41= 93-33= 35+8= 67+21= 65-7= 62-18= 37+48= 7+70= 36+27= 64-3= 26+63= 34+57= 76-34= 17+83= 5+48= 84-78= 43+31= 55+34= 53+35= 14+20= 27+56= 31-20= 5+40= 28+28= 23-15= 94-84= 39+23= 86+2= 65+27= 6×6= 70-36= 25-22= 35—35+25= 14+46= 53-9= 41+35= 89-52= 89-58+30= 39+42= 6+45= 29-12= 39-18= 66-50= 47+3= 36+18= 7×9= 37-27= 3+97= 46-7= 25-13= 13-7= 8+47= 95+5= 75+8= 51-24= 9×9= 91-90= 77-63= 18+3=21 30-12= 67+21= 33-28= 29+43= 63-6= 78-61= 36+27= 47+32= 2+96= 48+4= 87-44= 17+83= 50-15= 90-34= 18+6= 35=()+21 65+27= 59-14= 42+37= 33+42= 24+13-24= 93-35= 69-49= 46+37= 46-34= 19+24-19= 90-48= 11+36= 83+3= 39-()=29 44+55= 14+46= 18+80= 69-45= ()+26=26 43-22= 39+42= 96-32= 71-14= ()-56=16 74-50= 36+18= 10+27= 30+66= 33=()+23 6×1= 25-13= 32-11= 36+44= 35+60-52= 10+46= 51-24= 28+50= 35+33= 3×5= 11+44= 53+35= 41+18= 90-84= 80-3= 39-7= 77-18= 83-60= 70-17= 30+49= 54+46= 28+28= 42+22= 21+43= 6×3= 6×5= 30-12= 80-25= 59-40=

