18.简便计算
99×32+32 | 75×36-75×16 | 25×102 |
(46×25)×8 | 25×32×125 | 380÷125÷8 |
149.8-(13.6+49.8) | 26.46+14.7-6.46+5.3 | (128.73+15.91)+4.09 |
13.口算
0 161308 161316 161322 161326 161332 161334 161338 161344 161346 161352 161358 161362 161364 161368 161374 161376 161382 161386 161388 161392 161394 161398 161400 161402 161403 161404 161406 161407 161408 161410 161412 161416 161418 161422 161424 161428 161434 161436 161442 161446 161448 161452 161458 161464 161466 161472 161476 161478 161484 161488 161494 161502 199269
420÷30= | 92= | 0.32×1000= | 3.06×10= |
700÷14= | 2.7+0.8= | 5.4÷10= | 25×4= |
1800÷18= | 125×8= | 7.2-2.8= | 720×30= |
2.9+10.4= | 0÷241= | 172÷100= | 26-4.2= |
7.06-2.7= | 8÷8×8÷8= | 0.42+9.5= | 65×25×4= |