19.直接写得数.
60×6= | 8×12= | 25×4= | 0×65= | 560÷8= |
60÷6= | 77÷7= | 250÷5= | 0+65= | 160÷4= |
200×6= | 6×6+24= | 10+35÷5= | 35+65= | 480÷4= |
14.口算
150×6= | 725-65= | 350×2= | 230×4= |
140÷20= | 2700÷300= | 560÷40= | 102+20= |
10.一列火车每秒行驶34米,1分钟能行驶( )米.
0 163379 163387 163393 163397 163403 163405 163409 163415 163417 163423 163429 163433 163435 163439 163445 163447 163453 163457 163459 163463 163465 163469 163471 163473 163474 163475 163477 163478 163479 163481 163483 163487 163489 163493 163495 163499 163505 163507 163513 163517 163519 163523 163529 163535 163537 163543 163547 163549 163555 163559 163565 163573 199269
A. | 340 | B. | 3400 | C. | 2040 |