Simplify: 135
315
72
915
9×15
Simplify: 44·233
277
443
227
2212
Simplify: 403
853
83×53
253
You cannot take the cube root of 40.
Which of the following is a rational number?
6
2π
196
8
Which of the following illustrates that a rational number multiplied by a rational number is rational?
14×0.76=10.64
14×2π=28π
14×2=142
14×17=31