ready4achange22 ready4achange22
  • 26-04-2017
  • Mathematics
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Help how do I solve my son is in 5th grade??

Help how do I solve my son is in 5th grade class=
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Аноним Аноним
  • 26-04-2017
1)
?×1/10=7.34
?=10×7.34
?=73.4

2)
8.64×?=0.864
?=0.864/8.64
?=864/8640
?=1/10=0.1


3)
?×100=69.4
?=69.4/100
?=694/1000
?=0.694


4)
790×?=79,000
?=79,000/790
?=100


5)
?×1/100=570
?=100×570
?=57000


6)
0.0064×?=6.4
?=6.4/0.0064
? =64000/64
?=1000


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