Algebra II : Mathematical Relationships and Basic Graphs

Study concepts, example questions & explanations for Algebra II

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Example Questions

Example Question #33 : Multiplication And Division

Multiply the numbers:  \(\displaystyle 853\times 62\)

Possible Answers:

\(\displaystyle 52896\)

\(\displaystyle 52886\)

\(\displaystyle 51786\)

\(\displaystyle 51996\)

\(\displaystyle 53786\)

Correct answer:

\(\displaystyle 52886\)

Explanation:

Multiply 853 with the ones digit of the second number.

\(\displaystyle 853\times 2=1706\)

Save this number.

Multiply 853 with the tens digit of the second number.

\(\displaystyle 853\times 6=5118\)

Add a zero to this number.

\(\displaystyle 51180\)

Add this number with the saved number.

\(\displaystyle 51180+1706 = 52886\)

The answer is:  \(\displaystyle 52886\)

Example Question #2351 : Mathematical Relationships And Basic Graphs

Multiply the two numbers:  \(\displaystyle 263\times 83\)

Possible Answers:

\(\displaystyle 23829\)

\(\displaystyle 20829\)

\(\displaystyle 21729\)

\(\displaystyle 21829\)

\(\displaystyle 21839\)

Correct answer:

\(\displaystyle 21829\)

Explanation:

Multiply the first number with the ones digits of the second number.

\(\displaystyle 263\times 3 = 789\)

Multiply the first number with the tens digits of the second number.

\(\displaystyle 263\times 8 = 2104\)

Add a zero to the end of this number.

\(\displaystyle 21040\)

Add this number with the first number.

\(\displaystyle 21040+789 = 21829\)

The answer is:  \(\displaystyle 21829\)

Example Question #41 : Multiplication And Division

Multiply:  \(\displaystyle 95\times 84\)

Possible Answers:

\(\displaystyle 9460\)

\(\displaystyle 1040\)

\(\displaystyle 1140\)

\(\displaystyle 7980\)

\(\displaystyle 5290\)

Correct answer:

\(\displaystyle 7980\)

Explanation:

Multiply the first number with the ones digit of 84.

\(\displaystyle 95\times 4=380\)

Multiply the first number with the tens digit of 84.

\(\displaystyle 95\times 8=760\)

Add an extra zero to this number.

\(\displaystyle 7600\)

Add this number with the first number.

\(\displaystyle 7600+380 = 7980\)

The answer is:  \(\displaystyle 7980\)

Example Question #43 : Multiplication And Division

Multiply the following numbers:  \(\displaystyle 597\times 84\)

Possible Answers:

\(\displaystyle 49988\)

\(\displaystyle 49738\)

\(\displaystyle 50148\)  

\(\displaystyle 50338\)

\(\displaystyle 49138\)

Correct answer:

\(\displaystyle 50148\)  

Explanation:

Multiply the first number with the ones digit of the second number.

\(\displaystyle 597\times 4 =2388\)

Save this value.

Multiply the first number with the tens digit of the second number.

\(\displaystyle 597\times 8 =4766\)

Add a zero to the end of this number.

\(\displaystyle 47660\)

Add this number with the saved number.

\(\displaystyle 47660+2388 = 50148\)

The answer is:  \(\displaystyle 50148\)

Example Question #44 : Multiplication And Division

Multiply the following numbers:  \(\displaystyle 469\times 59\)

Possible Answers:

\(\displaystyle 28971\)

\(\displaystyle 26671\)

\(\displaystyle 27671\)

\(\displaystyle 28671\)

\(\displaystyle 27571\)

Correct answer:

\(\displaystyle 27671\)

Explanation:

Multiply the first number with the ones digit of the second number.

\(\displaystyle 469\times9= 4221\)

Save this value.

Multiply the first number with the tens digit of the second number.

\(\displaystyle 469\times5= 2345\)

Add a zero to the end of this number.

\(\displaystyle 23450\)

Add this number with the saved number.

\(\displaystyle 23450+4221= 27671\)

The answer is:  \(\displaystyle 27671\)

Example Question #45 : Multiplication And Division

Multiply the following numbers:  \(\displaystyle 566\times 56\)

Possible Answers:

\(\displaystyle 38356\)

\(\displaystyle 37356\)

\(\displaystyle 31696\)

\(\displaystyle 31896\)

\(\displaystyle 32796\)

Correct answer:

\(\displaystyle 31696\)

Explanation:

Multiply the first number with the ones digit of the second number.

\(\displaystyle 566\times 6 = 3396\)

Save this value.

\(\displaystyle 566\times 5=2830\)

Add a zero to the end of this number.

\(\displaystyle 28300\)

Add this number with the saved number.

\(\displaystyle 28300+3396 = 31696\)

The answer is:  \(\displaystyle 31696\)

Example Question #46 : Multiplication And Division

Solve the expression:  \(\displaystyle 217\times 549\)

Possible Answers:

\(\displaystyle 129133\)

\(\displaystyle 391803\)

\(\displaystyle 110633\)

\(\displaystyle 129243\)

\(\displaystyle 119133\)

Correct answer:

\(\displaystyle 119133\)

Explanation:

Multiply the first number with the ones digit of the second number.

\(\displaystyle 217\times 9 = 1953\)

Save this value.

Multiply the first number with the tens digit of the second number.

\(\displaystyle 217\times 4 = 868\)

Add a zero to the end of this number.

\(\displaystyle 8680\)

Save this value.

Multiply the first number with the hundreds digit of the second number.

\(\displaystyle 217\times 5 = 1085\)

Add two zeros to the end of this number.

\(\displaystyle 108500\)

Add this number with the saved numbers.

\(\displaystyle 108500+8680+1953 = 119133\)

The answer is:  \(\displaystyle 119133\)

Example Question #47 : Multiplication And Division

Multiply the numbers:  \(\displaystyle 226\times 89\)

Possible Answers:

\(\displaystyle 20014\)

\(\displaystyle 20114\)

\(\displaystyle 19224\)

\(\displaystyle 19214\)

\(\displaystyle 20214\)

Correct answer:

\(\displaystyle 20114\)

Explanation:

Multiply the first number with the ones digit of the second number.

\(\displaystyle 226\times 9 = 2034\)

Save this number.

Multiply the first number with the tens digit of the second number.

\(\displaystyle 226\times8=1808\)

Add a zero to this number.

\(\displaystyle 18080\)

Add this number with the saved number.

\(\displaystyle 18080+2034 = 20114\)

The answer is:  \(\displaystyle 20114\)

Example Question #5021 : Algebra Ii

Multiply the following numbers:  \(\displaystyle 359\times 84\)

Possible Answers:

\(\displaystyle 28856\)

\(\displaystyle 29856\)

\(\displaystyle 28966\)

\(\displaystyle 32156\)

\(\displaystyle 30156\)

Correct answer:

\(\displaystyle 30156\)

Explanation:

Multiply the first number with the ones digit of the second number.

\(\displaystyle 359\times 4= 1436\)

Multiply the first number with the tens digit of the second number.

\(\displaystyle 359\times 8 = 2872\)

Add a zero to this number.

\(\displaystyle 28720\)

Add this number with the first number.

\(\displaystyle 28720+1436 = 30156\)

Example Question #5022 : Algebra Ii

Multiply:  \(\displaystyle 97\times 86\)

Possible Answers:

\(\displaystyle 8242\)

\(\displaystyle 8452\)

\(\displaystyle 8152\)

\(\displaystyle 7352\)

\(\displaystyle 8342\)

Correct answer:

\(\displaystyle 8342\)

Explanation:

Multiply the first number with the ones digit of the second number.

\(\displaystyle 97 \times 6 =582\)

Multiply the first number with the tens digit of the second number.

\(\displaystyle 97\times 8=776\)

Add a zero to the end of this number.

\(\displaystyle 7760\)

Add this with the first number.

\(\displaystyle 7760+582 = 8342\)

The answer is:  \(\displaystyle 8342\)

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