a) 8.5 km = ______________ m b) 987 mm = ___________ cm c) 5 14 L = ____________ mL d) 4 L - 700 mL = __________ L e) 17 cm + 20 mm = ____________ mm f) 12 L - 70 mL = ____________ mL g) 0.850 dag = ____________ dg h) Compare 80 L _______________ 800 hL i) Compare 0.047 dg ______________ 470 mg Q2) Find the difference of 32 m 75 mm and 14 m 25 cm Q3) Find the quotient in decimal form : 4kg 14 g ÷ 6 Q4 ) A tetra pack contains 250 mL of juice . How many such packs are needed to fill a jug of capactity 2 L ?
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Answers
Answer:
QUESTION 1
a) 1km = 1000m
8.5km = 8.5 × 1000m
= 8,500m
b) 1cm = 10mm
1mm = 1/10 cm
987mm = 987/10 cm
= 98.7cm
c) 1l = 1000ml
514l = 514 × 1000l
= 5,14,000ml
d) 1l = 1000ml
4l = 4 × 1000ml
= 4,000ml
4,000ml - 700ml
= 3,300ml
= 3l 300ml or 3.3l
e) 1cm = 10mm
17cm = 17 × 10mm
= 170mm
170mm + 20mm
= 190mm
= 19cm
f) 1l = 1000ml
12l = 12 × 1000ml
= 12,000ml
12,000ml - 70ml
= 11,930ml
= 11l 930ml or 11.93 l
g) 1dag = 100dg
0.850dag = 0.850 × 100dg
= 85dg
h) 1hl = 100l
800hl = 800 × 100l
= 80,000l
80l < 80,000l
i) 1dg = 100mg
0.047dg = 0.047 × 100mg
= 4.7mg
4.7mg = 470mg
QUESTION 2
32m 75mm - 14m 25cm
1cm = 10mm
25cm = 25 × 10mm
= 250mm
32m 75mm - 14m 250mm
(Carry 1m to mm)
1m = 1,000mm
31m 1,075mm - 14m 250mm
=17m 825mm
= 17m 82cm 5mm
QUESTION 3
1kg = 1,000g
4kg = 4 × 1,000g
= 4,000g
= 4,000g ÷ 6
= 666.66…
QUESTION 4
1l = 1,000ml
2l = 2 × 1,000ml
= 2,000ml
2,000ml ÷ 250ml
= 8 Tetra Packs are needed