There are 32 tens in 324
320
320 and 330
15
43 of them.
40 groups of ten.
50
13 groups of 24, 1 group of 12.
140
What is the value of 2 on 321
How many tens are there in 1700?
427 = 42 tens, plus 7 ones
If you are rounding it off to the nearest tens place its 320 if its to the nearest hundred than its 300