A:56
B:15
C:112
D:16
Don't ____ waste paper on the floor.
10×20=____ 1-0.2=____ 6.5+3.4=____ 0.3 +1.8=____
9.28+0.7=____ 8.9-7.8=____ 8.9-1.9=____ 410+610= ____