Super Subtraction (Grades 2-4)

3 Digits

100

758-455=

303

200

374-163=

211

300

500-236=

264

400

719-257=

462

500

562-387=

175

4 Digits

100

1,964-500=

1,464

200

3,855-1,652=

2,203

300

2,000-1,250=

750

400

7,871-2,256=

5,615

500

8,887-2,959=

5,928

Word Problems

100

There are 495 seats at a basketball game.  So far, 335 seats have been sold.  How many seats are still available?

160 seats

200

Dylan has 275 pieces of candy.  He gives 186 candies to Sadia.  How many does Dylan have left?

89 pieces of candy

300

Bob collected 212 shells at the beach.  While swimming, the tide washed away 114 shells.  How many are left?

98 shells

400

Princess Leia has read 472 books from the senate library.  Chewbacca has read 296 books from the same library.  How many more books has Leia read than Chewbacca?

176 more books

500

At the start of the school, Ms. Hammer buys 654 erasers for her school.  At the end of the year, there are 159 erasers left.  How many erasers were used during the school year?

495 erasers

Logic

100

How many groups of ten are in one hundred?

10

200

When subtracting, which place value do you start with?

Ones (followed by tens, hundreds, thousands, etc.)

300

Which place value(s) do you need to regroup to solve the following problem: 410-222=?

Tens and ones

400

Which of the following terms does NOT indicate subtraction?

a. How many more

b. Difference

c. In all

d. Less than

c. In all

This indicates addition

500

How do you know when you need to regroup in a subtraction problem?

When looking at place value, the value you start with must be greater than the value you take away.  If there is not enough to take away, you must regroup.