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### Grade 8 - Mathematics7.48 Solving using Formula - II

 Example: Using appropriate formula and find the value of (1003)3. Solution: We can change the given problem like (1000+3)3, This is in the form of (a+b)3, so we can use this formula, (1000+3)3 = (1000)3 + 3.(1000)2.3 + 3.1000.(3)2 + (3)3 = 1,000,000,000 + 3.1,000,000.3 + 3.1000.9 + 27 = 1,000,000,000 + 9,000,000 + 27,000 + 27 = 1,009,027,027 Directions: Solve the following problems using appropriate formula. Also write at least ten examples of your own.
 Q 1: Using appropriate formula and find the value of (103)3.1,092,7271,072,7271,062,7271,082,727 Q 2: Using appropriate formula and find the value of (603)3.219,256,227219,276,227239,256,227219,246,227 Q 3: Using appropriate formula and find the value of (502)3.124,506,008126,506,008126,508,008126,526,008 Q 4: Using appropriate formula and find the value of (1008)3.1,024,192,5121,028,192,5121,024,292,5121,026,192,512 Question 5: This question is available to subscribers only! Question 6: This question is available to subscribers only!

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