1-35%=
189×10%= 70×1.4=
275+399=
20×35=
13.7-7=
40%×50=
60%+80%=
25×40=
18%+13%+9%=
300×2.7=
3.5×75+75×6.5=
= 0.3÷0.4= 25×4%= +75%= ()×6=
6×÷2= ÷2÷= 11×-=
1-30%= -10%= 40×80%= 72÷60%=
×40= 0.7:21= 6÷1.5= 20.03+1.4=
70×600= 82= + ÷ = 16÷8÷12.5=
35÷0.1= 3.7+2.53= 700÷35= 75×20=
×15= ÷ = - = + =