Kindergarten Math

Kindergarten Math

How to add bigger numbers

There are a few ways to add big numbers.

• The first way is to add numbers that you know first, then to add up your results.

• The second way is to stack your numbers, and add them up in rows, the ones, tens, and hundreds. This is the fastest way to add numbers.

Adding Big Numbers using things you already know

• Your problem is 14+14

• The first step you can use is to add 10+10, since the one is in the tens place.

20!

That's right!

Now you have to add 4+4

8!!!

Now...

• You need to add your answers up

Multiple Choice

20+8=

• 20

• 28

• 38

• 18

Great Job! The answer was 28. Now try one on your own.

Multiple Choice

What is 12+12?

• 16

• 14

• 24

• 32

Now you are ready to move on to the easier of the two- stacking and solving.

25+14=

14+25=

• Begin by stacking them so that 14 is above 25.

• Now you will need to add 4+5

Multiple Choice

4+5=

• 9

• 19

• 8

• 10

• 45

9

Nice!

Now add 1+2

(The tens value)

Multiple Choice

1+2=

• 1

• 2

• 12

• 21

• 3

3

Great Job!

Now you have the answer of 39

Try another!

• 12+16

Multiple Choice

12+16=

• 28

• 18

• 12

• 16

• 5

Poll

Nice Job! Which method do you like best?

• Breaking it up (the first one)

• Stacking (The second one)