Page 32 - SPARK OF MATH book(2)
P. 32
(2-3) Adding and Subtracting 3-Digit Numbers.
183 + 266
First, add the ones Second, add the tens
¹
183 183 183
+ 266 + 266 + 266 8
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9 49 + 6 =10 + 4
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14
Then, add the hundreds
¹
138
+ 266
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449
Add.
¹
342 224 432
+ 108 + 125 + 313
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450
577 799 801
+ 384 + 138 + 99
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32
