Class 4 (CBSE) • MathematicsChapter 7: The Cleanest Village⭐ Topic 2
Word Problems Using the Four Operations
We solve word problems that may need addition, subtraction, multiplication, or division, depending on what the problem asks.
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Reading a word problem carefully helps us decide which operation to use - key words like 'total' suggest addition, 'left' suggests subtraction, 'each' suggests multiplication, and 'shared equally' suggests division.
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- Key words hint at which operation to use.
- 'Total' suggests addition; 'left' suggests subtraction.
- 'Each' suggests multiplication; 'shared equally' suggests division.
- Some problems need more than one operation.
- 3 packs of 4 pencils, minus 5, needs multiplication then subtraction.
- Writing down numbers and operations helps avoid mistakes.
- Practice builds strong problem-solving skills.
- This skill helps in daily life and future maths.