10 + 10 + 20 + 20 +20 = 80.
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.
10+10
20
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.
It's obvious. Just add 10+10. And that equals 20. It is the same as 10x2=20.
1000 + 1000 + 1000 + 1000 + 40 + 30 + 20 + 10 = 4100
10% + 10% = 20%
Neither.
50
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