Question

Enrique said that 29.4 × 8.6 equals 2,528.4.

Is Enrique's answer reasonable?

A.
Yes, Enrique's answer is reasonable.

B.
No, Enrique's answer should be closer to 250.

C.
No, Enrique's answer should be closer to 25.

D.
No, Enrique's answer should be closer to 2.5.

Answer 1

if we convert the 2 numbers to 1 signifiicant figure and multiply we;ll get an estimate
29.4 becomes 30 and 8.6 becomes 9

giving 30 * 9 = 270

so what do you think the answer is?

Answer 2

the correct answer will be less than 270 because we have rounded up each number

Answer 3

so which one is it?

Answer 4

It should be obvious now...

Answer 5

is 270 anyway near 2,528.4?

Answer 6

are you still there?

Answer 7

sorry

Answer 8

um, no

Answer 9

270 is nowhere near 2528 but which of the options is it nearest to ?

Answer 10

B

Answer 11

@welshfella

Answer 12

otherwise count the position of decimal