A poster displaying addition by trading.
Print this poster out in tabloid size or larger and display it in your classroom.
Refer to it when you are working with addition concepts.
46+32 = 78
1. Rearrange the equation so
that the numbers line up above
2. Do the additions one column
at a time.
What if a column adds up to a
double digit number?
47+25 = 72
1. Add the ones column.
7+5 = 12
2. Put the ones value (2) in the
ones answer spot. Put the tens
value (1) above the tens column.
3. Add all numbers in the tens
column. Put the answer in the tens
1+4+2 = 7
Download this resource as part of a larger resource pack or Unit Plan.
Common Core Curriculum alignment
Add up to four two-digit numbers using strategies based on place value and properties of operations.
Add and subtract within 1000, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method. Understand that in addin...
Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.
Fluently add and subtract multi-digit whole numbers using the standard algorithm.
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