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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Grade 3 - Mathematics
5.1 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: 4+9+5
13
18
11
19

Q 2: (1+3)+5
9
8
10
11

Q 3: 4+(3+8)
15
12
11
13

Q 4: 3+5+8
13
17
11
16

Q 5: 1+8+4
16
13
11
14

Q 6: 2+4+6
18
15
14
12

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

Q 8: (2+3)+9
19
14
11
17

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


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