- = + = - =
+ = - = - =
+ = - = + = 1- =
- = + = - = + =
1- =
0.62=
3÷10=
1-=
1÷9 8÷5
7﹣6.38= 0.42÷0.7= 0.62= 37.2×99+37.2=
7.3﹣3= 8÷0.5= 53= 9﹣(2.5+6.5)=
0.8﹣0.35= 1÷0.25= 0.22×0.5= 10﹣4.8﹣3.2=
+ = - = + = 0.5+ = 83=
- = +2= 1- = -0.75= 122=
+ = + = 2- - = -0.75=
+ = 12.5×8= 0.64÷16=
0.025×100= 0.45÷4.5= 0.25×7×4=
G71 G3474 G401 Z161 G1536