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011_G3U01_WB_CA_˙—» ¿º 2011.4.5 2:34 PM ˘ ` 17 PDF_In 2540DPI 150LPI T

011-P2-1

Numbers that Satisfy Conditions

Find the 4-digit number that satisfies the conditions below.

The ones digit is 5 greater than the tens digit.
The tens digit is 2 greater than the hundreds digit.
The thousands digit is 1 less than the hundreds digit.

Step 1. The digit in the ones place is 5 greater than the digit in the tens
place. Write all the numbers that can be put in the tens and the
ones places.

,,,
,,
Step 2. The digit in the tens place is 2 greater than the digit in the
hundreds place. Write all the numbers that can be put in the
hundreds place.

,,,

Step 3. The digit in the thousands place is 1 less than the digit in the
hundreds place. Write the 4-digit number that satisfies the
conditions.

,