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20 add 30 add 50 equals what.
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In this question, we have to add three numbers together.
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Each of these numbers ends in a zero, which means itâ€™s a multiple of 10.
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20 is two tens.
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30 is three tens.
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And 50 is five tens.
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We know that two plus three makes five.
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So two tens plus three tens makes five tens.
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Two tens are 20.
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Three tens are 30.
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And five tens is 50.
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Now we can just add together the two 50s.
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What is 50 plus 50?
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We know that five plus five is 10.
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So five tens, which is 50, plus five tens, which is another 50, equals 10 tens.
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10 tens are 100.
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20 plus 30 plus 50 equals 100.