Adding and Subtracting Numbers

−7.34 − (−5.51)

6.673 − (−8.29)

• -18 2/3

• -17 13/24

• -18 13/24

• 1 19/24

What is the difference?

21,173-14,108

• 13,075

• 35,281

• 7,055

• 7,065

The answer to an addition problem is sum

• True

• False

628,281 + 52,261

• 628,483

• 680,542

• 680,263

• 635,274

72,283 + 25,928 equals to (a)  

• 173,018

• 89,273

• 98,211

• 72,374

623,476 + 274,058

• 897,533

• 978,534

• 879,453

• 897,534

Mary and Diana collect pencils. Mary has 35 pencils in her collection. Diana has 20 more pencils in her collection than Mary. What is the total number of pencils between the two girls?

• 55

• 90

• 89

• 80