①-+ ②+(-) ③6÷5+
④-(7.5-) ⑤-+- ⑥0.25-+-
0.25×40= 1-0.11= + = 3÷8=
10.5÷15= 9.09+1.01= - = 95÷96=
0.01+10.099= 4.31×0.7= 7.5- 2.5= 5.4+1.89+4.6=
0.56+4.44= 2.9+3.7+2.1= 4×0.25= 1.25×5×8=
7.6×8+2.4×8= 7.2÷4 =
①1.25×1.2×8
②12.45﹣3.45÷3
③13×25+13×75
④10.5÷1.4÷5