For the following, (i) use a calculator to divide and round your answer to the nearest ten-thousandth; and (ii) round each of the given numbers to the nearest whole number and divide: $22.43 \div 1.8$

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(i) Dividing 22.43 by 1.8 gives 12.4611 when rounded to the nearest ten-thousandth. (ii) Rounding 22.43 to the nearest whole number gives 22, and rounding 1.8 to the nearest whole number gives 2. Dividing 22 by 2 gives 11.

For the Following, (I) Use a Calculator to Divide and Round