Count back in hundreds to find the
difference. 429 subtract 300 equals what.
In this question, we have to
subtract 300 from 429. And the question tells us to use
the number line to count back in hundreds. So we need to start at the number
429, and we need to count back in hundreds three times because we’re subtracting
300. 100 less than 429 is 329. The hundreds digit has decreased by
one because we’ve taken away 100. 100 less than 329 is 229. So far, we’ve subtracted 200. Let’s subtract our final 100. 100 less than 229 is 129. 429 subtract 300 equals 129. We counted back in hundreds to find