问题
解答题
|
答案
36+42=78; 46+27=73; 560+90=650; 0×5+19=19;
194+603≈790; 46-15=31; 82-25=57; 940-720=220;
0+72+18=90; 406-298≈100.
|
36+42=78; 46+27=73; 560+90=650; 0×5+19=19;
194+603≈790; 46-15=31; 82-25=57; 940-720=220;
0+72+18=90; 406-298≈100.