Podcast
Questions and Answers
How can one-and two-digit addition and subtraction problems be solved?
How can one-and two-digit addition and subtraction problems be solved?
- By estimating and rounding numbers
- By multiplying and dividing
- By using complex algebraic equations
- By partitioning and using quantity values (correct)
What can be used to solve one- and two-digit addition and subtraction problems?
What can be used to solve one- and two-digit addition and subtraction problems?
- A ruler
- A blank number line (correct)
- A protractor
- A compass
How can addition and subtraction problems with one- and two-digit numbers be solved by 'bridging to 10'?
How can addition and subtraction problems with one- and two-digit numbers be solved by 'bridging to 10'?
- By converting them to Roman numerals
- By making the numbers more friendly for mental calculations (correct)
- By rounding the numbers to the nearest ten
- By using a calculator
What can be formed when adding and subtracting two-digit numbers?
What can be formed when adding and subtracting two-digit numbers?
How can a subtraction be turned into an addition using an inverse strategy?
How can a subtraction be turned into an addition using an inverse strategy?
How can addition and subtraction problems with one- and two-digit numbers be solved by 'partitioning'?
How can addition and subtraction problems with one- and two-digit numbers be solved by 'partitioning'?
What does it mean to 'bridge to 10' when solving addition and subtraction problems?
What does it mean to 'bridge to 10' when solving addition and subtraction problems?
How can the associative property of addition be applied to forming multiples of 10?
How can the associative property of addition be applied to forming multiples of 10?
What does it mean to 'form multiples of ten' when adding and subtracting two-digit numbers?
What does it mean to 'form multiples of ten' when adding and subtracting two-digit numbers?
How can a subtraction be turned into an addition using an inverse strategy?
How can a subtraction be turned into an addition using an inverse strategy?
