Adding and Subtracting and Multiplying and Dividing Decimals

12.931 + 9.67 = 

• 22.601
• 103.601
• 21.998
• 3.261

7.8 + 1.34 = 

• 9.14
• 2.12
• 6.46
• 8.42

8.42 - 5.14

• 328
• 3.28
• .328
• 32.8

15.8 - 9.67

• 613
• .613
• 6.13
• 61.3

0.2 x 0.8

• 16
• 0.16
• 0.016
• 1.6

7.13 x 5.5 

• 39.215
• 3.9215
• 392.15
• 3921.5

45.1 x 7

• 31.57
• 315.7
• 3,157
• 3.157

4 x 0.03

• 12
• 0.12
• 120
• 0.012

0.18 x 2

• 3.6

• 36

• 0.36

• 0.036

Vanessa downloaded two apps which were 17.73 kb total. If one app was 8.63 kb, how big was the other app?

• 26.36
• 9.1
• 9.70
• 25.6