50 thousands, 3 hundreds, 7 tens, 2 ones
10
It is 30 (cont 10 3 x)
(50/100) + (3/10) = (50/100) + (30/100) = (80/100) = (8/10) = 4/5
Three to the nearest tens is zero.
10X3 tens in unit form is written: 10*3 tens = 30 tens = 300 units.
430
It is 9*10^3.
3 thousands divided 10 in unit form = 0.3
50 thousands, 3 hundreds, 7 tens, 2 ones
5/10 - 3/10 = 2/10 = 1/5
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.
30?
10
12
let x- unit digit 2x + 1- twice the tens by one x + 2x +1 = 10 x + 2x = 10 - 9 3x= 9 x = 3 therefore : x = 3 2x + 1 = 7 the number is 37. you can try checking it: x + 2x + 1 = 10 3 + 2(3) = 10-1 3 + 6 = 9 9 = 9