7．直接写得数
0 155288 155296 155302 155306 155312 155314 155318 155324 155326 155332 155338 155342 155344 155348 155354 155356 155362 155366 155368 155372 155374 155378 155380 155382 155383 155384 155386 155387 155388 155390 155392 155396 155398 155402 155404 155408 155414 155416 155422 155426 155428 155432 155438 155444 155446 155452 155456 155458 155464 155468 155474 155482 199269
| 8.4-2.6= | 5.8+4.3= | 0.28×3= | 1.69÷1.3= |
| 2.5×6= | 0.64÷4= | 0.12×0.3= | 1÷0.02= |