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1、3 3 = 0 3 3 = 0 两盆一共开了几朵花？两盆一共开了几朵花？5 5 0 0 + + = 5 = 5 3 3 = 0 3 3 = 0 0 + 3 = 0 + 3 = 3 0 = 3 0 = 3 3 5 + 0 = 5 5 + 0 = 5 5 - 5 = 5 - 5 = 5 0 = 5 0 = 3 3 0 0 5 5 0 +0 + = = - - = = 4 4 4 4 4 4 4 4 0 0 2 + 0 = 2 + 0 = 算一算。算一算。 1 - 0 = 1 - 0 = 1 - 1 = 1 - 1 = 3 - 0 = 3 - 0 = 2 - 2 = 2 - 2 = 0 + 5 =
2、0 + 5 = 2 2 1 1 0 0 3 3 0 0 5 5 说一说，填一填。说一说，填一填。 5 -5 - = = 1 1 4 4 - - = = 5 5 3 3 2 2 - - = = 5 5 5 5 0 0 4 4 4 4 4 4 0 0 2 2 2 2 2 2 0 0 3 3 3 3 3 3 0 0 算一算：算一算：5 5 + + 0 = 0 = 4 4 1 = 1 = 5 5 2 = 2 = 2 2 + + 1 = 1 = 5 5 0 = 0 = 4 4 0 = 0 = 5 5 3 = 3 = 1 1 + + 2 = 2 = 5 55 53 34 43 32 23 33 30 +0 + = = - 0 - 0 = = - - = = 0 0里可以填几？里可以填几？