Question

请出20道加法交换律计算题，四年级上册的

Answer 1

(1) 312 + (196 + 188) = (2) 289 + (190 + 311) = (3) 171 + (169 + 529) = (4) 99 + (366 + 101) = (5) 119 + (56 + 281) = (6) 40 + (73 + 560) = (7) 352 + 85 + 215 + 48 = (8) 121 + 299 + 101 + 279 = (9) 351 + 12 + 49 + 288 = (10) 17 + (869 + 83) =

Answer 2

(1) 312 + (196 + 188) = (2) 289 + (190 + 311) = (3) 171 + (169 + 529) = (4) 99 + (366 + 101) = (5) 119 + (56 + 281) = (6) 40 + (73 + 560) = (7) 352 + 85 + 215 + 48 = (8) 121 + 299 + 101 + 279 = (9) 351 + 12 + 49 + 288 = (10) 17 + (869 + 83) =你能看到我吗？

Answer 3

住宿舍和夜景

Answer 4

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