3个3位数加减法计算题 100道 用时: 错误:
480 + 447 - 163 = 240 + 595 - 818 = 367 + 351 - 460 =
346 - 242 + 241 = 538 - 453 + 165 = 994 - 990 + 267 =
832 - 641 576 + 207 936 - 519 413 + 344 322 + 328 671 - 431 376 + 453 940 - 841 126 + 715 612 = 621 = 576 = 202 = 107 = 571 = 216 = 413 = 106 = 567 +349 +629 -355 +728 -818 -703 -829 -312 +321 - 755 = 332 + 227 = 438 + 448 = 128 - 107 = 647 + 666 = 265 + 244 = 180 + 154 = 438 + 450 = 442 + 241 = 326 + 265 + 992 - 161 + 305 + 112 + 251 + 245 + 123 +470 -162 +413 +169 +260 +515 -134 +339 +625 +510 =
430 =
145 =
483 =
270 =
141 =
161 =
281 =
120 =
+ - + - + + - + +
954 - 746 + 231 = 112 + 714 - 360 = 293 + 669 - 510 =
169 + 483 + 269 = 549 + 203 - 501 = 101 + 248 + 494 =
579 + 326 - 449 = 318 + 237 + 122 = 408 - 224 + 745 =
725 - 557 750 - 626 242 + 248 959 - 613 517 + 454 522 - 358 878 - 534 876 - 829 126 + 715 680 = 372 = 295 = 145 = 918 = 321 = 333 = 438 = 106 = 667 -168 +232 +222 +510 -238 +584 -556 +315 +340 + 585 = 350 + 454 = 362 - 429 = 476 - 564 = 184 + 115 = 158 + 310 = 556 + 879 = 177 - 257 = 146 + 136 = 203 +174 +530 +949 -203 -178 +251 +228 +286 +501 -146 +430 -727 +104 +237 +134 -272 +488 -424 =
335 =
769 =
279 =
886 =
320 =
161 =
444 =
539 =
+ + + + - + + + -
943 - 932 + 399 = 372 + 363 + 231 = 188 + 123 + 186 =
864 - 760 + 848 = 309 + 351 + 256 = 600 - 238 + 625 =
636 - 492 + 797 = 260 + 270 + 334 = 317 - 238 + 462 =
750 - 428 165 + 260 285 + 437 262 + 574 432 - 232 784 - 426 166 + 813 128 + 369 154 = 469 = 121 = 404 = 703 = 253 = 846 = 483 = 111 +852 -830 +707 -198 +336 +926 -134 + 359 = 587 + 642 = 152 - 587 = 438 + 426 = 381 - 567 = 472 - 245 = 813 + 145 = 255 +522 -214 +582 +124 +918 -368 -225 +159 +244 +119 -278 +631 +221 +147 =
102 =
175 =
371 =
498 =
174 =
728 =
+ + + - + + - +
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