第1个回答 2020-01-15
1、口算:
38+4= 2×3= 3×6= 24+26= 90-18= 72-18= 45-20= 6×6= 4×5= 40+26= 23+56= 78+22= 2×3= 100-80= 97-9= 6×4= 6+22= 5×3= 12+67= 15+34= 6×2= 31-2= 73-8= 3×6= 0+69= 4×4= 5×3= 75-25= 5×4= 70-50= 4×3= 6×4= 45+5= 87-25= 5×6= 3×3= 21-18= 4×3= 60-13= 6×3+8= 42-19= 37+5= 4×6+9= 37-8= 5×2= 18+56= 5×5-17= 8-29= 38+24= ( )×5=30 2×6= 6×2+9= 33+12= 16+69= ( )×4=20 ( )×6=24 2.( )里最大能填几?
( )×5< 22 ( )×2<9 4×( )< 10 6×( )<27 3×( )<13 ( )×5< 26 7×( )<58 ( )×4<35 ( )×4<18 9×( )<28 ( )×8<30 ( )×6<50