小学一年级数学(下)口算题(三) 94-90= 93-90= 21+45= 88-69= 16+74= 16+76= 42+13= 26+27= 75-71= 72+13= 94-5= 71-7= 77-5= 78-9= 45-42= 100-40= 81-9= 29-14= 80-43= 50+13= 71-43= 44+17= 97-23= 75-33= 75+11= 7+81= 75-56= 72-60= 86-34= 38-28= 62-40= 100-84= 82-1= 52+8= 91-57= 46+40= 8-8= 37-10= 80+19= 50-27= 72-67= 7-4= 18+76= 67+30= 73+9= 81-36= 77+2= 79-26= 63+23= 67-53= 36-8= 45-24= 99-90= 55+27= 73+6= 21+64= 44-34= 29-7= 82-12= 56-26= 89-30= 100-84= 100-78= 36+30= 96-39= 72-37= 8+80= 39+42= 94-7= 88-78= 39+49= 56+25= 13+53= 54+39= 67+19= 51-40= 45+16= 7-3= 27+37= 51+25= 69+3= 18+39= 91-52= 7-1= 100-99= 61+38= 59-11= 12+61= 62-46= 55-50= 23+74= 39+28= 6+78= 86-83= 29+36= 50-22= 8+69= 26+48= 47+36= 78-8=
