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Skill 1J Subtraction: Single Digit Vertical Problems Here we want to determine if your student understands the subtraction concept using small numbers in the most basic vertical format. Since each problem has numbers less than 10, the student should be able to answer this easily by counting either on his/her fingers or by drawing tally marks. In the beginning stages of teaching subtraction, it is preferable to teach counting down from the top number to instill the concept of subtraction. Later, textbooks teach the strategy of "counting-up" from the bottom number which makes it easier to get the answer once addition facts are somewhat mastered. Answer the subtraction problems below?
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