1-ST GRADE SUBTRACTION QUIZZES: Numbers subtraction in columns
Numbers subtraction interactive math quizzes. Subtraction 2-digit and 1-digit numbers and whole tens.
Quiz N:1. Subtract whole tens in columns.
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Quiz N:2. Subtraction 2-digit and 1-digit numbers.
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Written by Grigorii Andreev
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Hits: 450
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