Question

Kyle collects rainwater in two barrels. Last week one barrel collected 1.46 gallons of rainwater. The other barrel collected 0.751 gallon of rainwater. What was the total amount of rainwater that Kyle collected last week? Enter your answer in the box.

Answer 1

We’re given two numbers - 1.46 and 0.751 - and since we know that they were both collected last week (although from two separate barrels), we want to add these two numbers up. Aligning the numbers up ( for example, the 1 in 1.46 should align with the 0 in 0.751 because they’re both in the ones place, or the place before the decimal), we get

1.46
+0.751
————
-.—1
To fill in the blanks, we want to start by adding the 6 and 5, which is 11. Since the first digit of 11 is 1, we can carry the 1 into the space to the left to get

1
1.46
+ 0.751
————-
-.-11

For the next digit, we have 4+7=11, but we add the one on the top to get 12. 12-10=2, so we have
1
1.46
+ 0.751
————-
-.211

Since 1+1+0=2, we have 2.211 as our answer.



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