ADDITION AND SUBTRACTION PROBLEMS BY GROUPING PRACTICE PROBLEMS

Problem 1 :

The children in Mrs. Smith's class sell 372 tickets on Monday and 406 on Tuesday. There are 880 tickets to sell. How many tickets are left to sell ?

Problem 2 :

Maria has $3.25 in her piggy bank. She earns $2.50 doing chores for her mother. Then she spends $2.10. How much money does Maria have left ?

Problem 3 :

The school has 640 students. There are 116 students in the first grade and 208 students in the second grade. How many students are not in the first or second grade ?

Problem 4 :

Leon had 526 baseball cards. He gave 110 cards to Billy. Then Billy gave him 107 cards. How many baseball cards does Leon have now ?

Problem 5 :

The chickens lay 192 eggs on Monday and 264 eggs on Tuesday. How many eggs do the chickens lay altogether ?

Problem 6 :

Farmer Brown grows 465 pounds of corn. Farmer Smith grows 298 pounds of corn. Former Jones grows 319 pounds of corn. How much more corn does Former Brown grow than Farmer Jones ?

Problem 7 :

There are 320 fish in Farmer Brown's pond. Former Smith has 672 fish in his pond. Farmer Jones has 458 fish in his pond. How many fewer fish does Farmer Jones have than Farmer Smith ? 

Problem 8 :

Farmer Brown has 542 horses on his farm. 126 of the horses are brown. He buys 116 new horses. How many horses does Farmer Brown have in all ?

Answers and Solutions

1. Solution :

Number of tickets sold,

Monday = 372 tickets

Tuesday = 406 tickets

Total number of tickets to be sold out = 880

Total number of tickets sold out on monday and tuesday :

= 372 + 406

= 778

Tickets are left to sell =  880 - 778

= 102

So, 102 tickets are left to sell.

2. Solution :

Maria has save the money in her piggy bank = $3.25

Amount she earns = $2.50

Amount she is spending = $2.10

Total money = amount from her saving + earning

= $3.25 + $2.50

= $5.75

money left over = total money - spend the money

= $5.75 - $2.10

= $3.65

So, she will have $3.65 as left over.

3. Solution :

Number of students = 640

Number of students in first grade = 116

Number of students in second grade = 208

Total students in 1^st and 2^nd grade = 116 + 208

= 324

students are not in the first or second grade =  640 - 324

= 316

So, 316 students are not in the first or second grade.

4. Solution :

Leon had 526 baseball cards.

Number of cards he gave to Billy = 110

Number of cards gave by Billy = 107

 = 526 + 107 - 110

= 523

So, Leon has 523 baseball cards.

5. Solution :

Number of eggs laid by chicken on Monday = 192 eggs

Number of eggs laid by chicken on Tuesday = 264 eggs

Total eggs = 192 + 264

= 456

So, the number of eggs laid by the chickens altogether is 456.

6. Solution :

Farmer Brown grows 465 pounds of corn.

Farmer Smith grows 298 pounds of corn.

Former Jones grows 319 pounds of corn.

Number of pounds of corn on that farmer brown grow than

farmer Jones = 465 - 319

= 146 corn

7.Solution :

Former Brown's has 320 fish in his pond.

Former Smith has 672 fish in his pond.

Farmer Jones has 458 fish in his pond.

Number of fishes Farmer Jones have than Farmer Smith

= 672 - 458

= 214

So, Farmer Jones have 214 fishes  lesser than Farmer Smith.

8. Solution :

Farmer Brown has 542 horses on his farm.

Brown horses = 126

New horses = 116

= 542 + 116 - 126

= 658 - 126

= 532

So, total number of horses 532.