It is 5000.
10 times 2/5
21.5 in expanded form = (2 x 10) + (1 x 1) + (5/10)
Put 321 into three columns: Hundreds, Tens, and units. Then you have 3 Hundreds, 2 tens and 1 unit. It therefore is 320. However, if the unit was from 5 -9, you would round the ten up to 3.
Hundreds.
510
50,000
It is 5000.
10 times 2/5
21.5 in expanded form = (2 x 10) + (1 x 1) + (5/10)
50 (nearly 51). But the fifty hundreds are in the form of 5 thousands: no left-over hundreds as such.
Put 321 into three columns: Hundreds, Tens, and units. Then you have 3 Hundreds, 2 tens and 1 unit. It therefore is 320. However, if the unit was from 5 -9, you would round the ten up to 3.
We expand 715 into 7 hundreds, 1 ten, and 5 ones. This can be written as 7(100) + 1(10) + 5(1) = 715.
500 in standard form is 5.0 x 102
Hundreds.
Every coin, if the measurement unit is chosen appropriately/
Thousands are represented by an M and hundreds by a C. Fours are normally represented by the 5 unit (L=50 and V=5) preceded by a 1's unit (X=10 and I=1) to show 1 subtracted from 5. In this case the number would be MCMXLIV.