Name:    Lesson 7: Equations in a Story

1.

Simon is saving money to buy an electronic gaming system.  Simon can buy an electronic gaming system for \$500.00.  Simon has saved \$120.00 so far.  Which equation helps you to determine how much more money Simon needs?
 a. \$120.00 + ___ = \$500.00 c. \$120.00 + \$500.00 = ___ b. ___ - \$120.00 = \$500.00 d. \$120.00 - ___ = \$500.00

2.

Using your equation, how much more money does Simon need to save to buy his electronic gaming system?
 a. \$380.00 b. \$620.00 c. \$720.00 d. \$480.00

3.

Colin had 85 raffle tickets to sell.  He has already sold some tickets, but still needs to sell 26 more.  Which equation helps you to determine how many tickets Colin has sold already?
 a. ___ - 26 = 85 c. 85 + 26 = ___ b. 26 - ___ = 85 d. ___ + 26 = 85

4.

 a. 211 b. 69 c. 111 d. 59

5.

Sanruni is saving coins to buy a bicycle.  Sanruni has saved 25 ten-cent coins.  Sanruni needs 305 ten-cent coins to buy the bicycle.  Which equation helps you to determine how many more coins Sanruni needs to buy the bicycle?
 a. 25 + ___ = 305 c. ___ - 305 = 25 b. 305 + 25 = ___ d. ___ - 25 = 305

6.

Using your equation, how many more coins does Sanruni need to save to buy the bicycle?
 a. 280 b. 330 c. 330 d. 430

7.

Alissa spent 2 days beading a necklace. On the first day she used 240 beads.  When she was done, she had used 565 beads.  Which equation helps you to determine how many beads she used on the second day?
 a. 240 + 565 = ___ c. 240 - ___ = 565 b. 240 + ___ = 565 d. ___ - 240 = 565

8.

Using your equation, how many beads did Alissa use on the second day?
 a. 805 b. 325 c. 905 d. 525

9.

Simon wants to grow 220 corn plants.  So far he has planted 128 corn plants.  Which equation helps you to determine how many more corn plants Simon needs to plant?
 a. 128 + 220 = ___ c. 128 + ___ = 220 b. ___ - 220 = 128 d. ___ - 128 = 220

10.

Using your equation, how many more corn plants does Simon need to plant?
 a. 348 b. 488 c. 98 d. 92