Looking for trustworthy answers? Westonci.ca is the ultimate Q&A platform where experts share their knowledge on various topics. Discover the answers you need from a community of experts ready to help you with their knowledge and experience in various fields. Connect with a community of professionals ready to help you find accurate solutions to your questions quickly and efficiently.

what addition doubles fact can help you solve 4+5? explain how you know


Sagot :

4+5=9 because your adding hold up 5 fingers in put 4 more that's 9

⇒4+5

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

=2 × 4 +1

=8+1

= 9

→4+5

=(5-1)+5

 =5+5-1

 =10-1

 =9

Addition Doubles Fact used

→4+4 =8

or

→5+5=10