5,673 + 6,793 =?
12,466
In April, the zookeepers fed the seals 4,620 fish. In May, they fed the seals 5,068 fish. How many fish did they feed the seals altogether?
9,688 fish
4,201 + 9,979=?
14,180
Earth has an average diameter of about 7,926 miles. Mercury's approximate average diameter is 4,894 miles less than Earth's. What is Mercury's diameter?
about 3,032 miles
98309-48659=?
49,650
Ron's class read for a total of 7, 842 minutes during a read-a-thon. Cathy's class read for a total of 9,310 minutes. Cathy wrote this subtraction equation to show how many more minutes her class read than Ron. Solve and write an addition equation you could use to check the subtraction.
9,310-7,842=
9,310- 7,842= 1,468 minutes
Addition to check (inverse operation):
7, 842 + 1,468 = 9,310 minutes
78,196-14,587=?
63,609
There were 2,683 books sold at a bookstore this year. There were 1,317 more books sold last year. How many books in all were sold?
1. 2,683+ 1,317 = 4,000
2. 4,000 + 2,683 = 6,683 books
709,032-239,125=?
469,907
Mrs. LaPierre's stamp collection consists of 442 stamps. There are 131 flower stamps and 107 flag stamps in her collection. How many of Mrs. LaPierre's stamps are not of flowers or flags?
1. 131+ 107= 238
2. 442-238= 204 are not flowers or flags