# Valid number

Round the 453874528 on 2 significant numbers.

Result

x =  450000000

#### Solution:

Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):

Be the first to comment!

## Next similar examples:

1. Rounding
Double round number 727, first to tens, then to hundreds. (double rounding)
2. Rounding 2
Round the following negative number: -143.021
Added together and write as decimal number: LXVII + MLXIV
4. To thousands
Round to thousands following numbers:
5. Round it
0.728 round to units, tenths, hundredths.
6. Crates 2
One crate will hold 50 oranges. If Bob needs to ship 932 oranges, how many crates will he need?
7. Flood water
Flood waters in some US village meant that the homes had to evacuate 364 people. 50 of them stayed at elementary schools, 59 them slept with their friends and others went to relatives. How many people have gone to relatives?
8. Math classification
In 3A class are 27 students. One-third got a B in math and the rest got A. How many students received a B in math?
9. Expressions
Find out value of expressions if a = -1, b =2: x=b - 2a - ab y=a3 - b2 - 2ab z=a2 b3 - a3 b2 w=a + b + a3 - b2
10. Line
How many parts of line divide 5 (different) points that lie on it?
11. Ten pupils
10 pupils went to the store. 6 pupils bought lollipops and 9 pupils bought chewing gum. How many pupils have bought both lollipops and chewing gums (if everyone bought something)?
12. Plane
On how many parts divide plane 6 parallels?
13. Eq1
Solve equation: 4(a-3)=3(2a-5)
14. Cages
Honza had three cages (black, silver, gold) and three animals (guinea pig, rat and puppy). There was one animal in each cage. The golden cage stood to the left of the black cage. The silver cage stood on the right of the guinea pig cage. The rat was in the
15. One frame
5 picture frames cost € 12 more than three frames. How much cost one frame?
16. If-then equation
If 5x - 17 = -x + 7, then x =
17. Foot in bus
It was 102 people on the bus. 28 girls had two dogs. A 11 girls had one dog. At the next stop seceded 5 dogs (even with their owners). They got two boys together with three dogs. The bus drove one driver. How many foot were in bus?