10 + 10 + 20 + 20 +20 = 80.
15 add 20 = 35
20
40...
20
37,340
The correct answer is: 1000+40+1000+30+1000+20+1000+10 = 4100
That depends on what you mean: twenty add one fifth is 20 + 1/5 = 20 1/5 twenty, add one fifth (of twenty) is 20 + 1/5 * 20 = 20 + 4 = 24
The answer is 20 .
Add 20.
If you add 19.9 to 0.10, you will have 20.
same of the positive add inte gers lessthan 20