北师大版暑假作业(p34-35)及参考答案.ppt

暑假作业,（第3435页）（参考答案）,3.1,6,38.6,0.039,30,0.973,10,0.93,0.45,0.12,0.984,4,10,4,0.4,100,51,0.51,100,37.5,7500,100,大于,三,8007.7,180o,6,7,解：,解：,解：,解：,3.11.52,3.10.75,2.45,100（19.85.6）0.15,=10014.20.15,=85.80.1512.87,21345,=85.80.1512.87,21345,21170,191,解：,答：篮球每个79元。,解：,解：,答：一年级植树48棵，五年级植树144棵。,答：妹妹有邮票4张，姐姐有邮票12张。,