Question

estimate when multiplying decimals.
.123*.24

Answer 1

would it be .12 *.20

Answer 2

.123*.24=0.02952

Answer 3

but how would you estimate this

Answer 4

Rounded
.12*.20=0.024

Answer 5

Seems like .12 * .20 is a decent estimation, though .12 * .24 is going to be a bit more accurate and not too much harder to calculate. 12*20 + 12*4 = 240 + 48 = 288 -> .0288 -> .03