12.
口算 13.6÷100= | 0.08×3= | 0.8×1.25= | 0.4×4=0 | 36÷4= |
1.2×0.4= | 125÷1000 | 0.5×0.8= | 0.06×2= | 2.8÷0.7= |
11.牧场里有黄牛x只,奶牛比黄牛的3倍少5只,奶牛有( )只.
A. | 5x+3 | B. | 3x+5 | C. | 3x-5 | D. | 5x-3 |
10.花圃里有菊花100盆,茶花的盆数比菊花少n盆,茶花有( )盆.
0 161279 161287 161293 161297 161303 161305 161309 161315 161317 161323 161329 161333 161335 161339 161345 161347 161353 161357 161359 161363 161365 161369 161371 161373 161374 161375 161377 161378 161379 161381 161383 161387 161389 161393 161395 161399 161405 161407 161413 161417 161419 161423 161429 161435 161437 161443 161447 161449 161455 161459 161465 161473 199269
A. | 100+n | B. | n-100 | C. | 100-n | D. | 100 n |