Adding & Subtracting Comparisons

Adding

100

438 + 246

684

200

549 + 98 = 

647

300

1,398 + 75 = 

1,473

400

12,348 + 5, 892 = 

18,240

500

123,848 + 15, 983 = 

139, 831

Subtraction

100

98 - 43 = 

55

200

132 - 25 = 

110

300

482 - 129 = 

353

400

1,500 - 473 = 

1,027

500

12,050 - 9,276 = 

2,324

Rounding

100

Round 1,234 to the nearest tens place.

1,230

200

Round 5,398 to the nearest hundreds place.

5,400

300

Round 12,498 to the nearest ten thousands place.

10,000

400

Round 195,389 to the nearest hundred thousand.

200,000

500

Round 3,989 to the nearest hundred.

4,000

Perimeter

100

Find the perimeter if the length of a rectangle is 6m and the width is 3m.

18m

200

Rectangle

Length = 12cm

Width = 6cm

Perimeter = 

36cm

300

Find the perimeter of a square if one side is 10 in.

40in

400

Find the perimeter of a rectangle if the length is 5yd and the width is 2 times the length. 

30yd

500

The perimeter of a rectangle is 30cm.  The length is 10cm.  What is the width?

5cm