18.下面各数中,要读出两个零的数是( )
| A. | 1008 | B. | 300.06 | C. | 805.07 |
11.口算
0 138448 138456 138462 138466 138472 138474 138478 138484 138486 138492 138498 138502 138504 138508 138514 138516 138522 138526 138528 138532 138534 138538 138540 138542 138543 138544 138546 138547 138548 138550 138552 138556 138558 138562 138564 138568 138574 138576 138582 138586 138588 138592 138598 138604 138606 138612 138616 138618 138624 138628 138634 138642 199269
| 0.6×100= | 35÷100= | 7.5+0.25= | 2.4×5= | 1÷0.1= |
| 1.6÷0.04= | 6.25×0= | 10-1.26= | 2.3+2= | 1.25×8= |