- = 10-1.05= 32÷24×0= 7.18×99+7.18=
① - +
②4- -
③ - - +
④ + - +0.125
⑤ - + +
1- =
2- = =
+ = - = 0.6- = 3- - =
- = + = + = 1+ -0.75=