The answers are:
a. 8,133mg
b. 24.9kg
c. 108g
d. 7.1 kg
First, we need to convert all the units for each option, in order to be able to do the addition and substractions, so:
For a.
[tex]1cg=10mg\\1g=1000mg[/tex]
So,
[tex]90cg*\frac{10mg}{1cg}+95mg+7g*\frac{1000mg}{1g}+12cg*\frac{10mg}{1cg}+18mg=900mg+95mg+7000mg+120mg+18mg=8133mg[/tex]
For b.
[tex]1hg=0.1kg[/tex]
So,
[tex]4kg+2hg*\frac{0.1kg}{1hg}+14kg+5kg+17hg*\frac{0.1kg}{1hg}=4kg+0.2kg+14kg+5kg+1.7kg=24.9kg[/tex]
For c.
[tex]1dag=10g[/tex]
Let's assume the missing signs as negative signs
so,
[tex]12dag*\frac{10g}{1dag}-5g-7g=120g-5g-7g=108g[/tex]
For d.
[tex]1hg=0.1kg[/tex]
Let's assume the missing signs as negative signs
So,
[tex]8kg-9hg*\frac{0.1kg}{1hg}=8kg-0.9kg=7.1kg[/tex]
Have a nice day!
a) 900mg + 95mg + 7,000mg + 120mg + 18mg = 8,133mg
b) 4kg + .2kg + 14kg + 5kg + 1.7kg = 24.9kg
c) 120g - 5g - 7g = 108g
d) 8kg - .9kg = 7.1kg
90 cg 95 mg + 7g 12 cg 18 mg
Convert measurements so that all has same unit.
1 cg = 10mg; 1g = 1000 mg; Therefore:
90cg = 900mg; 7g = 7,000 mg; 12cg = 120mg
Add
900mg + 95mg + 7,000mg + 120mg + 18mg = 8,133mg
4 kg 2hg + 14 kg + 5 kg 17 hg
Convert measurements so that all has same unit.
1hg = .1kg; Therefore:
2hg = .2kg; 17hg = 1.7
Add
4kg + .2kg + 14kg + 5kg + 1.7kg = 24.9kg
12 dag 5 g – 7 g
Convert measurements so that all has same unit.
1 dag = 10g; Therefore:
12dag = 120g
Subtract
120g - 5g - 7g = 108g
8 kg – 9 hg
Convert measurements so that all has same unit.
1hg = .1kg; Therefore:
9hg = .9kg
Subtract
8kg - .9kg = 7.1kg
