how can you use base ten blocks to find 2.16 divided by 3

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09-12-2014
Mathematics

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how can you use base ten blocks to find 2.16 divided by 3

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joy123333 joy123333 · Answer 1 · 2014-12-09T16:09:27-05:00

For this question, let's move the decimal number 2 spaces to the right. 2.16-->216 You need 21 ten rods and 6 cubes. Why: I wouldn't do 2 hundred flats because 2 isn't divisible by 3. Put the ten rods into 3 equal group, then do the same with the cubes. You should end up with 7 in each group since 21 divided by 3 is 7. You should also end up with 2 cubes in each group. So in one group you have 72. Now move the decimal back to where it came from, 2 spaces to the left. Now you have 0.72.