SME
Grade 1 Math · Problem type
Add two-digit numbers
Use this for “Find the value of 27 + 46.”
Picture
Rods are tens, small cubes are ones.
This is an example. Type the numbers from your problem to start.
First number
+
Second number
=
In all
Number sentences
36 + 47 = 83
Good to know
•
Add tens to tens and ones to ones.
•
Then put the tens and the ones together.
Step-by-step
WE KNOW
First number: 36
Second number: 47
FIND
in all
Step 1 · Find in all
36 + 47 = ?
Add the tens. Add the ones. Then put them together.
Tens: 30 + 40 = 70
Ones: 6 + 7 = 13
70 + 13 = 83
In all: 83
Check
Put the numbers back in. Both sides should match.
36 + 47 = 83 ✓
Topic check
See what you know: 5 questions on this topic
New questions each time. Pass to mark it complete.
Refresh
Nothing to review first. This is a starting point.