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Use factors, divisibility and remainders: retrieval: a separate sample with explanations after your response.
Paper packet. Every task here also exists on screen, where it is checked automatically; answers written on paper are not assessed by Nydus. When you are back at a device, enter your answers there.
Use factors, divisibility and remainders: retrieval: attempt the integer properties sample without worked examples. Use the target of each question to decide which information matters, and record your initial response before reading its explanation.
What is the units digit of 7 raised to the 23rd power?
A two-digit positive integer has digit sum 12 and is divisible by 4. What is the largest such integer?
How many integers strictly between 20 and 70 are divisible by 6 but not by 9?
What is the smallest positive integer leaving remainder 1 when divided by both 6 and 8 and divisible by 5?
Review the integer properties decisions in this mixed practice sample. Identify the particular restriction or evidence that changed your answer, and return to the corresponding worked lesson before trying a new case.