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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Grade 1 - Mathematics
3.14 Doubles Plus One

Method:
  1. Read out the numeric expression given.
  2. Reduce it to the form such that it results in doubles with a 1 added to it.

Example:
Write 9 + 10 in doubles plus one form.

Look at the numbers in the above numeric expression.
Here we rewrite 10 as 9 + 1
9 + 10 = 9 + 9 + 1
Answer: 9 + 9 + 1


Directions: Answer the following questions. Also write at least ten examples of your own.
Q 1: Write 5 + 6 in doubles plus one form.
6 + 3 + 2 = 11
7 + 2 + 2 = 11
7 + 2 + 2 = 11
5 + 5 + 1 = 11

Q 2: Write 4 + 5 in doubles plus one form.
6 + 2 + 1 = 9
4 + 4 + 1 = 9
2 + 2 + 5 = 9
3 + 5 + 1 = 9

Q 3: Write 8 + 9 in doubles plus one form.
6 + 6 + 5 = 17
8 + 8 + 1 = 17
7 + 7 + 3 = 17
9 + 6 + 2 = 17

Q 4: Write 6 + 7 in doubles plus one form.
5 + 5 + 3 = 13
8 + 2 + 3 = 13
6 + 6 + 1 = 13
7 + 4 + 2 = 13

Q 5: Write 12 + 13 in doubles plus one form.
12 + 12 + 0 = 25
11 + 11 + 1 = 25
12 + 12 + 1 = 25
13 + 11 + 1 = 28

Q 6: Write 7 + 8 in doubles plus one form.
8 + 4 + 3 = 15
9 + 1 + 5 = 15
7 + 7 + 1 = 15
6 + 7 + 2 = 15

Question 7: This question is available to subscribers only!

Question 8: This question is available to subscribers only!


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