Add one to nine and make it twenty.you need to think of different ways to write numbers?

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2006-07-07 12:30:02 · 6 answers · asked by sam 1 in Science & Mathematics ➔ Mathematics

IX 9

XX 20

duh

2006-07-07 12:34:08 · answer #1 · answered by powhound 7 · 0⤊ 0⤋

Is a binary quotation:
1001 = 9
+ 1011 =11 the answer is 10100 for a 20

2006-07-07 13:16:21 · answer #2 · answered by joytoy1963 2 · 0⤊ 0⤋

9+1=10
10+10=20
10x2=20

2006-07-07 12:34:02 · answer #3 · answered by ★beeskneez★ 3 · 0⤊ 0⤋

Roman number

2006-07-07 12:34:55 · answer #4 · answered by Linda 7 · 0⤊ 0⤋

i can see it turn into 10 or 19 but i don't understand 20 please explain

2006-07-07 12:34:08 · answer #5 · answered by watdahellrudoin 3 · 0⤊ 0⤋

?????????

2006-07-07 12:33:02 · answer #6 · answered by reba 2 · 0⤊ 0⤋