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First convert to the same unit (1 cm = 10 mm). Then do the subtraction.
18cm
I think it's 18?
Sure thing, honey. To decrease 20 cm by 20 mm, you convert everything to the same unit - let's go with mm. 20 cm is 200 mm, so subtracting 20 mm from that leaves you with 180 mm. So there you have it, decrease 20 cm by 20 mm and you're left with 180 mm.
To decrease 20 cm by 20 mm, we first need to convert both measurements to the same unit. 20 cm is equal to 200 mm, so we have 200 mm - 20 mm, which equals 180 mm. Therefore, decreasing 20 cm by 20 mm results in a final measurement of 18 cm.
20 mm = 2 cm
Hence 220 cm - 2 cm = 18 cm
Remember the table in the Metric system
10 mm = 1cm
100 cm = 1 m
1000 m = 1 km
Each stage goes up in multiples of 10.
20cm=200mm, 200-20=180
It is 180mm but we can simplify to 18cm
Remember, 10mm= 1cm. So, just do 20-2= 18 cm
Because 2cm= 20mm
180mm or 18cm
18 cm
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How many mm equals to 30 cm?
1 cm = 10 mm 2 cm = 20 mm . . . 9 cm = 90 mm 10 cm = 100 mm 20 cm = 200 mm 30 cm = 300 mm
How many sq mm are there in 20 sq cm?
20 sq cm = 20*100 sq mm = 2000 sq mm
Does 200 mm equals 20 centimeters?
Yes, it does. 1 cm = 10 mm, so 20 cm = 200 mm ■
How may more millimeters are in 5 centimeters than in 2 centimeters?
5 cm X 10 mm/cm = 50 mm 2 cm X 10 mm/cm = 20 mm 50 mm - 20 mm = 30 mm The answer is 30 mm.
How do you convert 32 mm to centimeters?
10 mm = 1.0 cm 20 mm = 2.0 cm 30 mm = 3.0 cm 32 mm = 3.2 cm
How many mm equals to 30 cm?
1 cm = 10 mm 2 cm = 20 mm . . . 9 cm = 90 mm 10 cm = 100 mm 20 cm = 200 mm 30 cm = 300 mm
How many centimeters are in 244 mm?
10 mm = 1 cm 20 mm = 2 cm 200 mm = 20 cm 240 mm = 24 cm 244 mm = 24.4 cm
How many mm is in 20 cm?
10 mm = 1cm 20 mm = 2 cm
What is 20 cm tack away 20mm?
1 cm = 10 mm 20 cm x 10 = 200 mm 200 - 20 = 180 mm = 18 cm
How many sq mm are there in 20 sq cm?
20 sq cm = 20*100 sq mm = 2000 sq mm
20mm equals how many centimeters?
2 cm That's correct, 1 cm equals to 10 millimeter, that means 20 mm equals to 2 cm, 10 mm = 1 cm 20 mm = 2 cm.
How many mm equals to 15 cm?
1 cm = 10 mm 2 cm = 20 mm . . 10 cm = 100 mm . . 15 cm = 150 mm
Does 200 mm equals 20 centimeters?
Yes, it does. 1 cm = 10 mm, so 20 cm = 200 mm ■
How may more millimeters are in 5 centimeters than in 2 centimeters?
5 cm X 10 mm/cm = 50 mm 2 cm X 10 mm/cm = 20 mm 50 mm - 20 mm = 30 mm The answer is 30 mm.
How do you convert 32 mm to centimeters?
10 mm = 1.0 cm 20 mm = 2.0 cm 30 mm = 3.0 cm 32 mm = 3.2 cm
What is 70 mm equals centimeters?
10 mm = 1 cm 20 mm = 2 cm 30 mm = 3 cm . . 70 mm = 7 cm
How many sq mm in 20 mm?
None but 20 mm = 2 cm
