Question

What addition doubles fact can help you solve 4 5?.

Answer 1

The addition doubles fact used here is 4+4 =8 or 5+5=10

Given,

Double facts;-

Remind your kids that a double fact is a mathematical expression that has the same addend twice, such as 3 + 3 = 6 or 8 + 8 = 16. Give children the chance to practize combining groups of the same number using manipulatives or other classroom supplies.

Here,

We have to find the  addition doubles fact that can help us to solve 4 + 5

Then,

⇒4+5

=4+4+1----[5=4+1]

=2 × 4 +1

=8+1

= 9

Now,

→4+5

=(5-1)+5

=5+5-1

=10-1

=9

Therefore,

The addition doubles fact used here is;

→4+4 =8

or

→5+5=10

Learn more about doubles fact here;

brainly.com/question/129314

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