Write the correct words : 1000, one thousand, one hundred, ten, 352. The digit 2 is in the ....... place, hundreds, tens, ones, Fill in the missing numbers : 427, ....., ....., 430, 431, 425, 426, 428, 429, 427, 428, 128 + 70 = ....., 198, 200, 212, 217 + 72 = ...., 290, 289, 288, 485 - 71 = ...., 414, 410, 400, 313 + 320 = ..., 643, 633, 630, 457 - 352 = ...., 105, 101, 100, 368 + 123 = ...., 488, 491, 493, 408 + 83 = , 491, 480, 490, 461 - 246 = ...., 310, 215, 315, 372 - 258 = ...., 115, 114, 112, 669 - 81= ...., 588, 578, 568, 214 - 63 = ...., 150, 141, 151, 137 + 152 = ...., 289, 299, 278.

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