Math : Grade 5 : Exercise 2E

Solve. Use models to help you.

1. a. 612 + ______ = 948

Given,
What number if we add with 612 will give you 948
so, if we subtract 612 from 948 we will get the number
that is, 948 - 612 = 336

b. 7394 + ________ = 12642

12642 - 7394 = 5,248

c. ______ - 847 = 1238

Given,
what if we subtract 847 from what number will get 1238
so, if we add 847 with 1238 we will get that number
that is, 847 + 1238 = 2,085

d. ___________ - 9162 = 1811

9162 + 1811 = 10,973

e. 9408 - _______ = 1138

Given
If we subtract a number from 9408 will get 1138
so, if we subtract 1138 from 9408 will get that number
that is, 9408 - 1138 = 8,270

f. 49584 - _______ = 23175

49584 - 23175 = 26,409

2. a. What must add to 18345 to make it 19624?

Given
_______ + 18345 = 19624
that is, 19624 - 18345 = 1,279

b. If you subtract 23146 from a number , you are left with 35906. Find the number.

Given
__________ - 23146 = 35906
that is, 35906 + 23146 = 59,052

c. Find the number which must be subtracted from 83196 to leave 11422.

Given
83196 - _______ = 11422
that is, 83196 - 11422 = 71,774

d. The sum of two numbers is 40132. If one number is 29184, find the other number.

Given
29184 + _______ = 40132
that is, 40132 - 29184 = 10,948

3. a. Khalid wants to buy a board game that cost Rs 501. He has Rs 479. How much more money does he need?

Given
Cost of a board game = Rs 501
Amount he had = Rs 479
we have to find how much more money he need.
that is, 479 + _______ = 501
so, 501 - 479 = 22
Hence he need Rs22

b. Harshita's stamp album can hold 1,500 stamps. So far she has pasted 785 stamps in it. How many more stamps can she paste in it?

Given
Number of stamps album can hold = 1,500
Number of stamps she pasted = 785
we have to find how many more stamps she can paste
that is, 785 + ______ = 1,500
so, 1500 - 785 = 715
hence she can paste 715 more

c. A large library has lent out 1,785 books. It has 7,816 books left. How many books does the library have in all?

Given,
Number of books has lent out = 1,785
number of books left = 7,816
total number of books the library have = 1,785 + 7,816
                                                              = 9,601
hence the library have 9601 books

d. An art exhibition had 915 pieces of art on show. Some of them got sold but there were 211 unsold pieces. How many pieces were sold?

Given
Number of pieces of art on show = 915
number of pieces unsold = 211
we have to find number of sold out pieces.
number of pieces were sold = 915 - 211
                                             = 704
hence 704 pieces were sold