5.68﹣0.73﹣0.27
3.25×3.8+67.5×0.38
8×43×125
500-213= 10÷10%= 0.25+2.83= 1.25×0.8= 3.7-3.7÷3.7=
92-33= + = × = 9÷ = ( - )×20=
①32×12.5×2.5
②4.28+7.37+5.72+2.63
③ ÷[( - )× ]
④
51×102 0.8××12.5 ×7÷×7
83.47﹣(23.47+11) 45×99+45 1÷2.5+2.5×0.8
0.4÷0.2= 1÷= 406﹣299= a﹣a×0=