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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