Let’s go over addition!

How Many Animalsin the Zoo?

How Many Pokey Pigs?

1 + 1

In English + is called the “plus sign”. When we read an addition problem, we just say plus!

= 2 Pokey PigsIn English = is called the “equals sign”. When we read a math problem, we just say “equals”, or “is equal to”, or sometimes just “is” !

How Many Zany Zebras?

2 + 3

5 Zany Zebras

How Many Easter Bunnies?

3 + 5

8 Easter Bunnies

How Many Pretty Pandas?

1 + 3

The answer to an addition problem is called the “sum”. “Find the sum of…” means do the addition problem!

4 Pretty Pandas

How Many Feathered Flamingos?

5 + 4

9 Feathered Flamingos

How Many HoppingHound Dogs?

7 + 3

10 HoppingHound Dogs

How Many Roaring Lions?

6 + 1

7 Roaring Lions

How Many Toddling Turtles?

2 + 4

6 Toddling Turtles

How Many Sleeping Seahorses?

1 + 2

3 Sleeping Seahorses

How Many Croaking Frogs?

0 + 1

1 Croaking Frog

Adding without carry overLet’s work on some addition that is a little harder!

Tens OnesAdd 44 and 32Tens Ones 4 4+ 3 2________________ 7 6

Add the ones: 4 ones + 2 ones = 6 ones

Add the tens: 4 tens + 3 tens = 7 tens

So, 44+32=76

Hundreds Tens OnesAdd 116 and 23Hundreds Tens Ones 1 1 6+ 2 3__________________ 1 3 9

Add the ones: 6 ones + 3 ones = 9 ones

Add the tens: 1 tens + 2 tens = 3 tens So, 116+23

=139Add the hundreds: 1hundred+ 0 hundred = 1 hundred

Hundreds Tens OnesAdd 161 and 214Hundreds Tens Ones 1 6 1 + 2 1 4 __________________ 3 7 5

Add the ones: 1 one + 4 ones = 5 ones

Add the tens: 6 tens + 1 ten = 7 tens So, 161+214

=375Add the hundreds: 1 hundred+ 2 hundreds = 3 hundreds

Now you try! Complete page 18 in your textbook.