.. 万 以 内 加 减 法 口 算 练 习 3 5 0 0 + 5 0 0 = 4 5 0 0 - 8 0 0 = 4 1 0 + 9 0 = 3 0 0 0 + 7 0 0 0 = 5 8 0 - 4 0 = 7 8 0 + 6 0 = 2 3 0 0 + 6 7 0 = 1 8 2 0 + 3 0 5 0 = 8 0 7 0 - 3 1 0 0 = 5 7 3 0 - 6 8 0 = 1 0 0 0 0 - 2 8 0 3 9 0 0 + 2 0 5 0 = 4 5 0 - 1 9 0 = 2 8 0 0 + 3 0 0 = 2 1 6 0 - 3 8 0 = 9 0 0 0 - 5 0 0 0 = 3 7 0 = 5 8 0 0 = 2 5 0 - 8 0 = 4 7 8 0 + 2 5 0 = 1 4 0 0 - 9 0 0 = 6 0 0 0 + 4 0 = 5 8 0 - 4 0 = 7 8 0 + 6 0 = 1 3 0 0 - 8 0 0 = 2 6 0 - 9 0 = 6 0 + 2 3 0 0 = 9 0 0 0 - 8 0 0 = 8 2 0 - 7 0 = 1 7 0 0 + 3 0 0 = 6 8 0 - 4 0 0 = 7 4 5 - 2 0 6 = 4 8 9 - 1 2 7 = 5 7 0 - 4 8 0 = 8 4 0 + 4 0 0 = 7 0 0 - 8 0 = 2 8 4 + 3 1 4 = 8 4 0 - 4 8 0 = 9 4 0 + 4 5 2 0 = 6 7 0 - 4 2 0 = 9 0 + 4 6 0 0 = 1 5 7 8 - 5 8 9 = 3 6 5 7 + 2 5 6 9 = .. 1 9 7 6 + 4 8 5 7 = 5 8 3 + 6 7 5 8 = 2 1 3 0 + 4 2 5 = 1 8 6 7 + 2 3 9 6 = 8 2 4 1 - 1 9 8 9 = 4 1 0 2 - 2 5 4 6 = 9 1 3 4 - 4 8 7 5 = 2 3 1 1 - 9 8 9 = 4 8 9 9 - 2 3 6 5 = 1 9 7 6 + 4 8 5 7 = 5 8 3 + 6 7 5 8 = 2 1 3 0 + 4 2 5 = 1 8 6 7 + 2 3 9 6 = 4 1 0 2 - 2 5 4 6 = 1 4 9 0 + 7 0 3 = 4 5 0 + 4 9 0 = 3 6 0 - 2 7 0 = 4 0 0 0 + 3 0 0 = 9 8 2 6 - 7 0 0 = 3 2 2 9 - 2 1 2 = 7 8 6 7 - 3 9 8 0 7 8 6 + 1 6 2 8 = 7 2 5 0 + 8 9 0 = 7 0 0 0 - 2 0 0 = 4 5 0 0 - 8 0 = 6 5 0 8 - 1 2 0 0 = 5 6 0 + 2 9 0 0 = 4 3 7 5 + 3 2 6 8 = 3 5 0 0 + 5 0 0 = 4 5 0 0 - 4 0 0 = 4 1 0 - 9 0 = 8 0 + 5 4 0 = 6 0 0 -...
