→ Find the difference between each pair of items in mm.(a) Two nails

1.	→ Find the difference between each pair of items in mm.(a) Two nails of 2.5 cm and 33 mm. _______(b) Two sticks of length 42 mm and 2 cm 8 mm. _______(c) Two wire of length 13.7 cm and 11.5 cm. ________
Answer» Answer: a) ✮We know that: 1 cm = 10mm So, 2.5cm = 25mm ✮Solution: (33-25)mm = 8MM Therefore, The difference between two nails are 8mm. b) ✮We know that: 1cm = 10mm So, 2 cm = 2×10 = 20mm and 8mm = 20+8mm = 28mm ✮Solution: (42-28)mm = 14mm Therefore, The difference between two STICKS are 14mm. c) ✮We know that: 1cm =10mm So, 13.7cm = 13.7×10 = 137mm And, 11.5cm = 11.5×10 = 115mm ✮Solution: (137-115)mm = 22mm Therefore, The difference between two wires are 22mm.

→ Find the difference between each pair of items in mm.(a) Two nails of 2.5 cm and 33 mm. ___(b) Two sticks of length 42 mm and 2 cm 8 mm. _(c) Two wire of length 13.7 cm and 11.5 cm. ______

Answer»

a) ✮We know that:

1 cm = 10mm

So, 2.5cm = 25mm

✮Solution:

(33-25)mm = 8MM

Therefore, The difference between two nails are 8mm.

b) ✮We know that:

1cm = 10mm

So, 2 cm = 2×10 = 20mm and 8mm = 20+8mm = 28mm

✮Solution:

(42-28)mm = 14mm

Therefore, The difference between two STICKS are 14mm.

c) ✮We know that:

1cm =10mm

So, 13.7cm = 13.7×10 = 137mm

And, 11.5cm = 11.5×10 = 115mm

✮Solution:

(137-115)mm = 22mm

Therefore, The difference between two wires are 22mm.