Podcast
Questions and Answers
What is the reference number used in the multiplication example provided?
What is the reference number used in the multiplication example provided?
In the multiplication of 97 and 125, how much below the reference number is 97?
In the multiplication of 97 and 125, how much below the reference number is 97?
What is the sum obtained after adding 97 and 25 in the given multiplication method?
What is the sum obtained after adding 97 and 25 in the given multiplication method?
What mathematical operation is performed first after determining how much above or below the reference number each given number is?
What mathematical operation is performed first after determining how much above or below the reference number each given number is?
Signup and view all the answers
What is the final result of multiplying 122 by the reference number 100?
What is the final result of multiplying 122 by the reference number 100?
Signup and view all the answers
When determining how much above or below the reference number, which symbol is used for numbers above?
When determining how much above or below the reference number, which symbol is used for numbers above?
Signup and view all the answers
After determining that 97 is below the reference number, which of the following describes that position?
After determining that 97 is below the reference number, which of the following describes that position?
Signup and view all the answers
In the process of cross multiplication, what results from subtracting 3 from 125?
In the process of cross multiplication, what results from subtracting 3 from 125?
Signup and view all the answers
What is the primary benefit of teaching multiplication tables, according to the author?
What is the primary benefit of teaching multiplication tables, according to the author?
Signup and view all the answers
When multiplying numbers above the reference number, where do you draw the circles?
When multiplying numbers above the reference number, where do you draw the circles?
Signup and view all the answers
In the example of multiplying 13 by 15, what mathematical operation is done after placing the circles?
In the example of multiplying 13 by 15, what mathematical operation is done after placing the circles?
Signup and view all the answers
How is the number 13 represented when using 10 as a reference number?
How is the number 13 represented when using 10 as a reference number?
Signup and view all the answers
What additional concepts do students learn while practicing their multiplication tables?
What additional concepts do students learn while practicing their multiplication tables?
Signup and view all the answers
Why might some educators argue against teaching multiplication tables directly?
Why might some educators argue against teaching multiplication tables directly?
Signup and view all the answers
What is represented by the numbers 3 and 5 in the context of multiplication in the teens?
What is represented by the numbers 3 and 5 in the context of multiplication in the teens?
Signup and view all the answers
Which of the following methods is specifically mentioned as part of the multiplication technique in the teens?
Which of the following methods is specifically mentioned as part of the multiplication technique in the teens?
Signup and view all the answers
What is the result of multiplying 96 by 96?
What is the result of multiplying 96 by 96?
Signup and view all the answers
Which of the following pairs results in a product of 9,215?
Which of the following pairs results in a product of 9,215?
Signup and view all the answers
Identify the product of 95 multiplied by 95.
Identify the product of 95 multiplied by 95.
Signup and view all the answers
What is the correct result of multiplying 97 by 93?
What is the correct result of multiplying 97 by 93?
Signup and view all the answers
What product results from multiplying 98 by 95?
What product results from multiplying 98 by 95?
Signup and view all the answers
When multiplying 98 by 94, what is the expected product?
When multiplying 98 by 94, what is the expected product?
Signup and view all the answers
Which calculation yields 9,016?
Which calculation yields 9,016?
Signup and view all the answers
What is the result of 97 multiplied by 94?
What is the result of 97 multiplied by 94?
Signup and view all the answers
What is the first step in the calculation of multiplying 34 by a factor of 20?
What is the first step in the calculation of multiplying 34 by a factor of 20?
Signup and view all the answers
What is the subtotal obtained after multiplying 34 by 20 using the method described?
What is the subtotal obtained after multiplying 34 by 20 using the method described?
Signup and view all the answers
How is the final answer of 713 obtained in the calculation?
How is the final answer of 713 obtained in the calculation?
Signup and view all the answers
What are the substitute numbers to check the multiplication 23 × 31 using the casting out nines method?
What are the substitute numbers to check the multiplication 23 × 31 using the casting out nines method?
Signup and view all the answers
What is the result of adding the digits of the product obtained from the substitute numbers 5 and 4?
What is the result of adding the digits of the product obtained from the substitute numbers 5 and 4?
Signup and view all the answers
Which technique is suggested for multiplying numbers in the high teens?
Which technique is suggested for multiplying numbers in the high teens?
Signup and view all the answers
Which of the following operations is performed to check if 713 is the correct answer using casting out the nines?
Which of the following operations is performed to check if 713 is the correct answer using casting out the nines?
Signup and view all the answers
What final result should a student expect after performing the calculations for 23 × 27 based on the method described?
What final result should a student expect after performing the calculations for 23 × 27 based on the method described?
Signup and view all the answers
What is the result of adding the numbers in the circles above for the multiplication problem 12 × 17?
What is the result of adding the numbers in the circles above for the multiplication problem 12 × 17?
Signup and view all the answers
What is the subtotal obtained after multiplying 19 by the reference number 10 in the 12 × 17 problem?
What is the subtotal obtained after multiplying 19 by the reference number 10 in the 12 × 17 problem?
Signup and view all the answers
When using the reference number method, what does a circle drawn below the reference number indicate?
When using the reference number method, what does a circle drawn below the reference number indicate?
Signup and view all the answers
In the example with 10, 13 × 15, what is the final answer after adding the product of circled numbers to the subtotal?
In the example with 10, 13 × 15, what is the final answer after adding the product of circled numbers to the subtotal?
Signup and view all the answers
How do you find the subtotal when the circled numbers are above the reference number?
How do you find the subtotal when the circled numbers are above the reference number?
Signup and view all the answers
What mathematical operation is performed on the circled numbers when they are above the reference number?
What mathematical operation is performed on the circled numbers when they are above the reference number?
Signup and view all the answers
What should be added to the final answer from the multiplication process, according to the methodology described?
What should be added to the final answer from the multiplication process, according to the methodology described?
Signup and view all the answers
If the final multiplication involves numbers below the reference number, what action must be taken?
If the final multiplication involves numbers below the reference number, what action must be taken?
Signup and view all the answers
What is the correct verbal representation of the answer when calculating 98 × 98 using a reference number?
What is the correct verbal representation of the answer when calculating 98 × 98 using a reference number?
Signup and view all the answers
How do you compute the answer when using double multiplication for 92 times 94 without knowing 8 times 6?
How do you compute the answer when using double multiplication for 92 times 94 without knowing 8 times 6?
Signup and view all the answers
If you follow the steps for calculating 96 × 96, which of the following results will you get?
If you follow the steps for calculating 96 × 96, which of the following results will you get?
Signup and view all the answers
What is the primary method used to determine 96 in the context of multiplication with a reference number?
What is the primary method used to determine 96 in the context of multiplication with a reference number?
Signup and view all the answers
When performing a calculation with reference numbers, what is the result of 2 times 2?
When performing a calculation with reference numbers, what is the result of 2 times 2?
Signup and view all the answers
In the context of the calculations described, what is the result of 98 × 97?
In the context of the calculations described, what is the result of 98 × 97?
Signup and view all the answers
What two numbers are filled in the circles when calculating 92 times 94 using double multiplication?
What two numbers are filled in the circles when calculating 92 times 94 using double multiplication?
Signup and view all the answers
What method is suggested for subtracting when calculating 92 × 94?
What method is suggested for subtracting when calculating 92 × 94?
Signup and view all the answers
Study Notes
Speed Math for Kids
- Book by Bill Handley
- Published by John Wiley & Sons, Inc. (2007)
- Aims to teach basic calculations quickly and fun for kids.
- Includes various mathematical methods and applications.
- Provides methods for addition, subtraction, multiplication, and division.
- Explains the use of reference numbers.
- Includes practice sheets for learners.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.