用简便方法计算89+124+11+76 125×64 975﹣147﹣233000÷125÷8 134×8+8×66 365×99.
把算式写完整.327+915=327+ + + = + + = + = 705﹣398=705﹣ + = + = .
163×39﹣163×29.
699+736+101+364.
怎样简便就怎样算:××24 42×(﹣) (+)× ×﹣×.