CBSE Class 6 Mathematics Question 37 of 41

The Other Side of Zero — Question 42

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42
Question
Here are six integer cards: (+1), (+7), (+18), (-5), (-2), (-9). You can pick any of these and make an expression using addition(s) and subtraction(s). Here is an expression: (+18) + (+1) – (+7) – (-2) which gives a value (+14). Now, pick cards and make an expression such that its value is closer to (-30).
Answer

Let’s try to create an expression that gets as close to (-30) as possible using the given cards: (+1, +7, +18, -5, -2, -9).
One possible expression is: (-9) + (-5) + (-2) + (-18) + (+1)
Let’s calculate the value step by step:
1. (-9) + (-5) = -14
2. -14 + (-2) = -16
3. -16 + (-18) = -34
4. -34 + (+1) = -33
Hence, the value of this expression is (-33), which is quite close to (-30).