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Remember to:
• partition the numbers
• write out the two new questions
• add the tens
• add the ones
• add the tens answer to the ones answer
Addition Step 25
56+8787
780
Remember to:
• partition the numbers
• write out the two new questions
• add the tens
• add the ones
• add the tens answer to the ones answer
Addition Step 25
Remember to:
• partition the numbers
• write out the two new questions
• add the tens
• add the ones
• add the tens answer to the ones answer
56+8750+80 6+7
Addition Step 25
Remember to:
• partition the numbers
• write out the two new questions
• add the tens
• add the ones
• add the tens answer to the ones answer
56+8750+80 6+7
130
Addition Step 25
Remember to:
• partition the numbers
• write out the two new questions
• add the tens
• add the ones
• add the tens answer to the ones answer
56+8750+80 6+7
130 13
Addition Step 25
Remember to:
• partition the numbers
• write out the two new questions
• add the tens
• add the ones
• add the tens answer to the ones answer
56+8750+80 6+7
143130 13
F A B Addition Step 25
Addition Step 25
Let’s practice!
Five questions
Get your whiteboards ready!!
Remember to:
• partition the numbers
• write out the two new questions
• add the tens
• add the ones
• add the tens answer to the ones answer
60+40 8+5
68 + 45 ?
Question 1
How do you know?
F A B Addition Step 25
Remember to:
• partition the numbers
• write out the two new questions
• add the tens
• add the ones
• add the tens answer to the ones answer
Question 1
100 13
68 + 45 ?
113
How do you know?
Addition Step 25F A B
86 + 78 ?
164
Remember to:
• partition the numbers
• write out the two new questions
• add the tens
• add the ones
• add the tens answer to the ones answer
ExampleAddition Step 25
Brain only!
F A B
85 + 59 ?144
Addition Step 25Question 3
How do you know?
F A B
