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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10


Mental Addition

Method:
  1. Add the expression within parentheses first.
  2. Add the result to the third number.

Example: (5+4)+3
  1. Add 5 and 4. The result is 9.
  2. Add 3 and 9.
Answer:12
Directions: Find the sum of the following. Also write at least ten examples of your own.
Q 1: 2+9+6
11
14
17
19

 Q 2: 8+9(+7)+4
13
14
28
11

Q 3: 1+8+4
14
16
11
13

 Q 4: 8+2+7
13
11
17
15

Q 5: 3+5+8
11
13
16
17

 Q 6: 3+(4+5)
11
12
17
18

Question 7: This question is available to subscribers only!

 Question 8: This question is available to subscribers only!


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