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Operations with Decimals

Complete the test and get an award.

Fifteen questions on adding, subtracting, multiplying and dividing decimal numbers, including estimation, missing numbers and a word problem. Eleven questions are multiple choice and four ask you to type the answer; the maximum score is 19 points.
Question 1 (1 point)
Without multiplying exactly, which number is closest to [tex]8.7 \times 3.2[/tex]?

Question 2 (1 point)
Add.
[tex]8.04 + 2.1 =[/tex]

Question 3 (2 points)
Add.
[tex]3.6 + 0.45 + 12 = [/tex] 
Question 4 (1 point)
Subtract.
[tex]80 - 2.5 =[/tex]

Question 5 (1 point)
Add.
[tex]8.88 + 7.04 =[/tex]

Question 6 (2 points)
Find the missing number.
[tex]5 - [/tex]  [tex] = 1.45[/tex]
Question 7 (1 point)
Multiply.
[tex]12.8 \times 2.5 =[/tex]

Question 8 (1 point)
Multiply.
[tex]18.9 \times 4.5 =[/tex]

Question 9 (1 point)
[tex]x \div 3.6 = 1.8 + 1.8[/tex]
What is the value of [tex]x[/tex]?

Question 10 (1 point)
Divide.
[tex]84.5 \div 5 =[/tex]

Question 11 (2 points)
Divide.
[tex]3 \div 0.25 = [/tex] 
Question 12 (1 point)
Which expression has the same value as [tex]64.2 \div 2[/tex]?

Question 13 (1 point)
Which statement is true?

Question 14 (1 point)
[tex]1.2 \div 0.3 = x \div 0.4[/tex]
What is the value of [tex]x[/tex]?

Question 15 (2 points)
In a gymnastics competition Emma scored [tex]8.75[/tex], [tex]9.2[/tex] and [tex]8.05[/tex] in her three routines. What was her total score?
Answer:

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