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### MEAP Preparation - Grade 7 Mathematics2.68 Multiplication of Monomials - I

 Method: 1. Rearrange the factors using commutative and associative properties, so that all numerical factors are at one place and all the literal factors (variables) are at another place in their alphabetical order. 2. Multiply all the numerical factors together. 3. Multiply all the literal factors. Example: (2x)*4 = _____? Solution: (2x)*4 = (2*x)*4 = 2*(x*4) ........ (Associative Law) = 2*(4*x) ........ (Commutative Law) = (2*4)*x ........ (Associative Law) = 8*x 8x Directions: Solve the following multiplication problems and enter your answers in the space provided. For example, 3x * 4 = 12x. Also write at least 10 examples of your own.
 Q 1: 15x * 9 = _____ ?Answer: Q 2: 7x * 8 = _____ ?Answer: Q 3: 19x * 7 = _____ ?Answer: Q 4: 15x * 5 = _____ ?Answer: Q 5: 7x * 15 = _____ ?Answer: Q 6: 12x * 6 = _____ ?Answer: Q 7: 50x * 4 = _____ ?Answer: Q 8: 9x * 7 = _____ ?Answer: Question 9: This question is available to subscribers only! Question 10: This question is available to subscribers only!

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