Measurement

Advanced Math 4 · Unit 10 · measurement-conversions · Teacher edition

measurement-conversions

Name ______________________________Date ______________

1.
A hiking trail is $3$ km $450$ m long. How long is the trail in metres?
Answer: ______________
2.
A jug holds $2$ litres of juice. Mia fills $6$ cups from the jug. Each cup holds $250$ mL. How many millilitres of juice are left in the jug?
Answer: ______________
3.
A train leaves the station at 13:50 and arrives at 16:25 the same afternoon. How long is the journey?
1. (A)
  $3$ h $25$ min
2. (B)
  $2$ h $25$ min
3. (C)
  $2$ h $45$ min
4. (D)
  $2$ h $35$ min

Answer key — Measurement

1.
3450measurement-conversions-01
$3$ km $= 3{,}000$ m, so $3$ km $450$ m $= 3{,}000 + 450 = \mathbf{3{,}450}$ m.
2.
500measurement-conversions-02
Jug $= 2{,}000$ mL. Poured: $6 \times 250 = 1{,}500$ mL. Left: $2{,}000 - 1{,}500 = \mathbf{500}$ mL.
3.
(D)
$2$ h $35$ min
measurement-conversions-03
13:50 $\to$ 15:50 is $2$ h; 15:50 $\to$ 16:00 is $10$ min; 16:00 $\to$ 16:25 is $25$ min. Total 2 h 35 min. ( $3$ h $25$ min counts 13 to 16 as three full hours and ignores that the trip starts at 50 minutes past; $2$ h $25$ min forgets the $10$ minutes before 16:00; $2$ h $45$ min adds $10$ minutes twice.)