120 or 1 hundred+2 tens
120
6*10 + 12*1 = 60 + 12 = 72
120
12 to the nearest tens place = 10
120 ÷ 10 = 12 tens
620=500+12 tens 12 tens=12*ten=120 500+120=620 couldn't had just googled it?
12 tens mean there are 1 tens and 2 ones, as only one digit can occupy a column.
In 12000, there are;12 thousands120 hundreds and1200 tens
9 tens + 12 ones = 9 × 10 + 12 × 1 = 90 + 12 = 102.
326
12 tens more than 30605 = 30605 + 12*10 = 30605 + 120 = 30725
10
Its the same.