Spot-the-value-error cards · own paper
Whole supplied source
Fictional draft cards for a pretend train-label guide. The known quantities are first 309 labels, second 390 labels and third 903 labels, all counting the same kind of label, not prices or observed stock. One hundred has the value of ten tens; one ten has the value of ten ones. The three draft cards below contain claims to check; they are supplied mistakes, not worked answers. Draft card 1 prints 309 and shows 3 hundreds, 9 tens and 0 ones. Draft card 2 calls the order 903, 390, 309 “least to greatest”. Draft card 3 says 309 and 903 have equal value because they use the same digits.