{"id":138,"date":"2022-04-12T04:57:53","date_gmt":"2022-04-12T04:57:53","guid":{"rendered":"http:\/\/4thclass.deltapublications.in\/?page_id=138"},"modified":"2025-11-18T10:29:05","modified_gmt":"2025-11-18T10:29:05","slug":"e-12-divisibility-rules-word-problems","status":"publish","type":"page","link":"https:\/\/4thclass.deltapublications.in\/index.php\/e-12-divisibility-rules-word-problems\/","title":{"rendered":"E.12 Divisibility rules: word problems"},"content":{"rendered":"\n

Divisibility rules: word problems<\/strong><\/h2>\n\n\n\n

key notes:<\/p>\n\n\n\n

What is Divisibility?<\/strong><\/p>\n\n\n\n

\ud83d\udd39 A number is divisible<\/strong> by another if it can be divided without any remainder<\/strong>.
\ud83d\udfe2 Example: 12 \u00f7 3 = 4 \u2705 (12 is divisible by 3)<\/p>\n\n\n\n

Divisibility Rules to Remember:<\/strong><\/p>\n\n\n\n

By 2\ufe0f\u20e3:<\/strong> Last digit is 0, 2, 4, 6, or 8.<\/p>\n\n\n\n

By 3\ufe0f\u20e3:<\/strong> Sum of digits is divisible by 3.<\/p>\n\n\n\n

By 4\ufe0f\u20e3:<\/strong> Last two digits form a number divisible by 4.<\/p>\n\n\n\n

By 5\ufe0f\u20e3:<\/strong> Last digit is 0 or 5.<\/p>\n\n\n\n

By 6\ufe0f\u20e3:<\/strong> Divisible by both 2 and 3<\/strong>.<\/p>\n\n\n\n

By 9\ufe0f\u20e3:<\/strong> Sum of digits is divisible by 9.<\/p>\n\n\n\n

By 10\ufe0f\u20e3:<\/strong> Last digit is 0.<\/p>\n\n\n\n

Tips for Word Problems \ud83d\udcdd:<\/strong><\/p>\n\n\n\n

\ud83d\udd39 Read the problem carefully.
\ud83d\udd39 Identify which divisibility rule applies.
\ud83d\udd39 Check numbers using the rules before dividing.
\ud83d\udd39 Always write your remainder<\/strong> if any.<\/p>\n\n\n\n

Common Word Problem Examples:<\/strong><\/p>\n\n\n\n

\ud83c\udf4e \u201cThere are 24 apples. Can we divide them into baskets of 3 without leftover?\u201d
\u2705 24 \u00f7 3 = 8 \u2192 divisible<\/p>\n\n\n\n

\ud83c\udf88 \u201cThere are 50 balloons. Can we make groups of 5?\u201d
\u2705 50 \u00f7 5 = 10 \u2192 divisible<\/p>\n\n\n\n

Fun Tip \ud83c\udf89:<\/strong><\/p>\n\n\n\n

Use color codes<\/strong> in your notebook:<\/p>\n\n\n\n

\ud83d\udd35 Blue for numbers divisible by 2<\/p>\n\n\n\n

\ud83d\udd34 Red for numbers divisible by 3<\/p>\n\n\n\n

\ud83d\udfe2 Green for numbers divisible by 5<\/p>\n\n\n\n

Quick Check Strategy \u2705:<\/strong><\/p>\n\n\n\n

Add digits for 3 & 9<\/p>\n\n\n\n

Look at the last digit for 2, 5, 10<\/p>\n\n\n\n

Check last 2 digits for 4<\/p>\n\n\n\n

Learn with an example<\/h3>\n\n\n\n
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\ud83d\udd25 At the company picnic, 75 employees will participate in a relay race. Each team must be the same size.<\/p>\n\n\n\n

How many teams could the company form for the relay race?<\/p>\n\n\n\n