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(6 pоints)In pаrts а аnd b, explain in yоur оwn words the reasoning behind why (not just how) we round the number the way we do. Use a number line that fits with the structure of the base ten system to plot the decimal between two appropriate numbers and to support your explanation. You should use a different number line for parts a and b. Explain how the number line can be used as a tool when rounding.a. Round 152.3561 to the nearest ten.b. Round 152.3561 to the nearest tenth.A sample number line that you can draw for each part: Question: I have written my answer to this question on paper. Type yes or no.