Practice 10 questions on MATH277 - Introduction to Linear Algebra at University of North Dakota. Free AI-generated quiz on uNotes — track your score, retake anytime.
1According to the course material, which property of addition involves 'regrouping' numbers for easier calculation, such as turning (253 + 16) + 7 into (253 + 7) + 16?
2When solving 351 - 99 mentally by first subtracting 100, why must you add 1 to the result of 251?
3Identify the child's strategy: Miguel solves 6 + ? = 13 by adding 6 + 6 to make 12, then adding 1 more.
4Which of the following mental math equations correctly utilize the Associative Property as described in the activity?
5What is the correct mental math result for the problem 999 + 9999 using the 'associative rounding' method mentioned in the document?
6Which child in the video uses 'Level 2: Counting On' by starting at 6 and counting up to 13?
7Nicole uses 'Direct Modeling Count All' to solve 6 + ? = 13. Which action best describes this strategy?
8Which of these are examples of the Commutative Property of Addition?
9In the mental subtraction of $10.00 - $2.99, what is the final step after calculating $10.00 - $3.00 = $7.00?
10Using the 'associative rounding' strategy, solve 164 - 70 by first rounding 164 to 170.
