1. The sum of three decimals is 598.45. Two decimals are 264.10 and138.02. What is the third decimal?

A. 196.33

B. 196.027

C. 19.033

D. 19.227

2. What is the total when you combine 2.845, 0.53 and 1.7? 

A. 5. 675

B. 4.035

C. 3.524

D. 5.075

3. The difference between 18.645 and 0.987 is what number? 

A. 17.658

B. 17.798

C. 18.708

D. 18.789

4. The sum of 0.841 + 0.852 + 1.652 + 17.25 is______ 

A. 20.659

B. 20.595

C. 20.585

D. 205.95

5. What is the difference between 75.58 and 39.7? 

A. 37.88

B. 38.58

C. 35.88

D. 35.48 ​