Extra practice ยท invented examples
Try without notes
Choose the rule, then calculate. These 12 new questions use the same skills as the practice sheet. Try first; use a hint when you need one.
0First try, no help
0Correct after help or retry
0Not yet correct
A small hint (counts as help)
Next unlocks when you answer correctly or open the explanation. A wrong attempt still counts if you retry.
One round finished
One round is a starting check. Rework the questions that needed help, then try the original sheet without notes. Come back tomorrow and explain each rule aloud before calculating.