Elliott adds the hundreds together and writes 300.
Elliott adds 8 tens and 4 tens and writes 120.
Then he adds the 9 ones and 6 ones and gets 15.
Then he adds 300 + 120 + 15 and writes 435.
Explanation of Elliott's method:
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Elliott adds the hundreds together and writes 300. Elliott adds 8 tens and 4 tens and writes 120. Then he adds the 9 ones and 6 ones and gets 15. Then he adds 300 + 120 + 15 and writes 435. |
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