10+10
well if you add together 2 and 2, it makes 4 so ,10 add 10 is 20 ,so double 20, is obviously 40.
1000 + 1000 + 1000 + 1000 + 40 + 30 + 20 + 10 = 4100
50
Add by 10 each time.
20
10+10
The correct answer is: 1000+40+1000+30+1000+20+1000+10 = 4100
well if you add together 2 and 2, it makes 4 so ,10 add 10 is 20 ,so double 20, is obviously 40.
10
You can add 0 to 20 to get 20, or 10 to 20 and get 30 (In fact, you can try any multiple of 10). Otherwise, there are no other values you can add to 20 to get a 0 for the number in front of the decimal place.
1000 + 1000 + 1000 + 1000 + 40 + 30 + 20 + 10 = 4100
Half of 20 is 10. If you add 10 and 10, you will see that they make 20. Since they are both the same number and equal to 20, then 10 is half of 20.
It's obvious. Just add 10+10. And that equals 20. It is the same as 10x2=20.
A book costs £10. Delivery is £2.50 Tax is 20%. If I add up the cost of the book and delivery and then add tax it will cost (£10 + £2.50) + 20% of the total. =£12.50 + 20% = £12.50*1.2 = £15.00 If I add tax to the cost of the book, and then add delivery, it will cost (£10 + 20%) + £2.50 = £10*1.5 + £2.50 = £12.00 + £2.50 = £14.50
10% + 10% = 20%
Neither.