Arithmetic in Base 10

2.37+5.8=

• 8.17

• 8.18

• 9.17

• 8.71

3.075+0.357=

• 3.432

• 3.234

• 3.342

• 3.243

94 - 4.8 =

• 92.0

• 88.4

• 89.2

• 90.2

• 85.5

Reagan is creating a video. The first video clip was 22.36 minutes long. The second video clip was 17.03 minutes long. What is the total length of the video?

• 39.39 minutes

• 30.25 minutes

• 40.50 minutes

• 35.00 minutes

What is the sum of the first 20 terms of the arithmetic sequence 2, 5, 8, 11, ...?

• 590

• 610

• 630

• 650

What is the common difference of the arithmetic sequence?

-7, -2, 3, 8, 13, . . .

Mathematical Equivalence

ON

Find a₂₆ in the arithmetic sequence: -15, -35, -55, -75, ...

Mathematical Equivalence

ON

Determine the common difference of the arithmetic sequence in which a₁ = 5 and a₅ = 17, then determine the 21^st term of this sequence.

Common difference = ​ (a)  

21^st term = ​ ​ (b)  

• 3

• 12

• 4

• 65

• 69

• 61

7.9 - 3.47 =

• 3.47

• 5.00

• 4.00

• 6.00

• 4.43

Abby buys a game for $7.89 and batteries for $5.49.  She pays with a twenty dollar bill, how much change will she receive? 

• 7.72

• 33.38

• 13.38

• 6.62