50L.E + 10L.E + 20L.E = ..., 100, 90, 80, 70, 10L.E, 20L.E, 30L.E, 40L.E, Odd + Odd =, Odd, Even, Odd or Even, Otherwise, Complete the pattern, a, b, c, d, The name of the pattern, 6by5, 4by5, 5by6, 5by4, The number of columns, 1, 6, 5, 2, (Estimate 761 ...... (Front end strategy, 70, 80, 700, 800, 650, a) Even, b) Odd, a and b, Otherwise, 186pounds, 746 + 146 = ...., 886, 892, 600, 800, Decompose 78, 70+80, 7+8, 7+80, 70+8, 3/4, 1/3, 1/4, 3/3, Fraction of the yellow apples, 3/8, 8/8, 5/8, 1/8, ...... = 351 - 570, 221, 921, 219, 819, How many students like cats than rabbits, 12, 2, 10, 8, Fact Family, 20 = 16 + 4 (a, 16 = 4 - 20 (b, 4 = 16 - 20 (c, a and b and c, Estimate 57 ... (Nearst 10 strategy), 60, 50, 40, 30, The rule of the pattern, 3 +, 4 +, 3 -, 4 -, Three Third, Equal parts, Un equal parts

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