2. One, four, seven, ten
Ten, eight, six, four
Two, four, six, eight
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3. 1. One
2. Four
3. Six
4. Nine
5. Ten
6. Three
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4. 6+2=8 six plus two equals eight
9-1=8 nine minus one equals eight
5+1=6 five plus one equals six
3+2=5 three plus two equals five
10-1=9 ten minus one equals nine
3-2=1 three minus two equals one
6+4=10 six plus four equals ten
8-1=7 eight minus one equals seven