9 + 17= ..., Diana makes 37 cookies. Her sister makes 26 cookies. How many cookies do they have altogether?, 170 + 30 = …, 345 + 43 = …, I have collected 67 marbles. My friend gave me 33 more marbles. How many marbles do I have altogether?, 71 – 19 = …, 102 – 34 = …, There are 73 needles in the box. Then, 23 needles were used. How many needles are in the box left?, 857 – 305 = …, My teacher puts 26 books on the table. The students take 19 books from the table. How many books are on the table now?.

Math Review (Addition and Subtraction)

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