0.5﹣ = |
1﹣0.09= |
1.8×6= |
10.5﹣9.5= |
+ = |
+ = |
+ = |
﹣ = |
1﹣ = |
+ + = |
+ = 1- = - =
0.9×100= + = 0.64÷16=
10-9.12= 0.7÷3.5= 0.8×125=
90÷3= 17×3= = 67×0+25= 8T-3000kg=
12×5= 48÷4= = 84-84÷4= 1500kg+2500kg=
2.4×0.3= 4.2÷3= 0.6a+5.4a= 0.3²= 3.2×4÷3.2×4=
6x-5x= + = = 6.4-2.12= 102×98≈
800×60= 20×500= 210×30= 120×40=
+ = + = - = - =
25×40= 30×13= 800÷4= 750÷5=
+ = 1- = + = - =
15×11= 32×50= 810÷9= 30×20=
125×80= 25×9×4=
0.6-0.47= 0.75+1.4= 1- =