Question

show a way to count from 170 to 410 using tens and hundreds. circle at least 1 benchmark number

Answer 1

Okay, so we start at 170

170

then we add 30 to reach the number 200

170+30=200

then we add 200 to reach the number 400

200+200=400

then we add 10 to reach 410

400+10=410

The benchmark numbers are bolded...