Convert Measurement Units Within Systems - 4th Grade Math

1. What is the time equivalence for $1$ hour in minutes?

   $1$ hr $=$ $60$ min. Standard time conversion.

2. What is $4$ ft expressed in inches?

   $48$ in. Multiply: $4 \times 12 = 48$ inches.

3. What is $9$ minutes expressed in seconds?

   $540$ sec. Multiply: $9 \times 60 = 540$ seconds.

4. What is $3\ \text{hr}$ expressed in minutes?

   $180\ \text{min}$. Multiply 3 × 60 since 1 hr = 60 min.

5. What is the relationship between pounds and ounces in customary units?

   $1\ \text{lb} = 16\ \text{oz}$. A pound contains 16 ounces in the customary system.

6. What is the time equivalence for $1$ hour in seconds?

   $1$ hr $=$ $3600$ sec. Multiply: $60 \times 60 = 3600$ seconds.

7. What is the time equivalence for $1$ minute in seconds?

   $1$ min $=$ $60$ sec. Standard time conversion.

8. What is $450\ \text{cm}$ expressed in meters?

   $4.5\ \text{m}$. Divide 450 ÷ 100 since 100 cm = 1 m.

9. What is the relationship between hours and seconds?

   $1\ \text{hr} = 3600\ \text{sec}$. 60 minutes × 60 seconds = 3600 seconds in an hour.

10. What is $5\ \text{kg}$ expressed in grams?

    $5000\ \text{g}$. Multiply 5 × 1000 since 1 kg = 1000 g.

11. What is the customary mass equivalence for $1$ lb in ounces?

    $1$ lb $=$ $16$ oz. Standard conversion in the customary system.

12. What are the ordered pairs for a feet-to-inches table for $1$ ft to $4$ ft?

    $(1,12)$, $(2,24)$, $(3,36)$, $(4,48)$. Each pair shows (feet, inches) where inches = feet × 12.

13. What is the relationship between kilograms and grams in the metric system?

    $1\ \text{kg} = 1000\ \text{g}$. Kilo- means 1000, so 1 kilogram equals 1000 grams.

14. What is the metric mass equivalence for $1$ kg in grams?

    $1$ kg $=$ $1000$ g. Kilo- prefix means 1000 times the base unit.

15. What is the metric length equivalence for $1$ m in centimeters?

    $1$ m $=$ $100$ cm. Centi- means 1/100, so 100 cm fit in 1 meter.

16. What is $5$ L expressed in milliliters?

    $5000$ mL. Multiply: $5 \times 1000 = 5000$ milliliters.

17. What is the length equivalence for $1$ cm in millimeters?

    $1$ cm $=$ $10$ mm. Centi- is 1/100 m and milli- is 1/1000 m, so 10 mm = 1 cm.

18. What is $750\ \text{ml}$ expressed in liters?

    $0.75\ \text{l}$. Divide 750 ÷ 1000 since 1000 ml = 1 l.

19. What is the length equivalence for $1$ ft in inches?

    $1$ ft $=$ $12$ in. Standard customary length conversion.

20. What conversion table lists feet to inches for $1$ to $4$ feet as ordered pairs?

    $(1,12),(2,24),(3,36),(4,48)$. Each foot value is multiplied by 12 to get inches.

21. What is the length equivalence for $1$ m in millimeters?

    $1$ m $=$ $1000$ mm. Milli- means 1/1000, so 1000 mm equal 1 m.

22. What is the relationship between meters and centimeters in the metric system?

    $1\ \text{m} = 100\ \text{cm}$. Centi- means 1/100, so 100 centimeters make 1 meter.

23. What is $48\ \text{oz}$ expressed in pounds?

    $3\ \text{lb}$. Divide 48 ÷ 16 since 16 oz = 1 lb.

24. What is $7$ lb expressed in ounces?

    $112$ oz. Multiply: $7 \times 16 = 112$ ounces.

25. What is $1200\ \text{g}$ expressed in kilograms?

    $1.2\ \text{kg}$. Divide 1200 ÷ 1000 since 1000 g = 1 kg.

26. What is $6\ \text{lb}$ expressed in ounces?

    $96\ \text{oz}$. Multiply 6 × 16 since 1 lb = 16 oz.

27. What is $3\ \text{km}$ expressed in meters?

    $3000\ \text{m}$. Multiply 3 × 1000 since 1 km = 1000 m.

28. What is the relationship between kilometers and meters in the metric system?

    $1\ \text{km} = 1000\ \text{m}$. Kilo- means 1000, so 1 kilometer equals 1000 meters.

29. What is the relationship between feet and inches in customary length units?

    $1\ \text{ft} = 12\ \text{in}$. A foot contains 12 inches in the customary system.

30. What is $2\ \text{l}$ expressed in milliliters?

    $2000\ \text{ml}$. Multiply 2 × 1000 since 1 l = 1000 ml.

31. What is the length equivalence for $1$ yd in inches?

    $1$ yd $=$ $36$ in. Since $1$ yd $= 3$ ft and $1$ ft $= 12$ in, multiply $3 \times 12$.

32. What is $2$ km expressed in meters?

    $2000$ m. Multiply: $2 \times 1000 = 2000$ meters.

33. What is the metric length equivalence for $1$ km in meters?

    $1$ km $=$ $1000$ m. Kilo- means 1000, so multiply by 1000.

34. What is the relationship between liters and milliliters in the metric system?

    $1\ \text{l} = 1000\ \text{ml}$. Milli- means 1/1000, so 1000 milliliters make 1 liter.

35. What is the length equivalence for $1$ yd in feet?

    $1$ yd $=$ $3$ ft. Standard customary length conversion.

36. What is $7\ \text{m}$ expressed in centimeters?

    $700\ \text{cm}$. Multiply 7 × 100 since 1 m = 100 cm.

37. What is the relationship between hours and minutes?

    $1\ \text{hr} = 60\ \text{min}$. An hour contains 60 minutes.

38. What is the relationship between minutes and seconds?

    $1\ \text{min} = 60\ \text{sec}$. A minute contains 60 seconds.

39. What is the metric capacity equivalence for $1$ L in milliliters?

    $1$ L $=$ $1000$ mL. Milli- means 1/1000, so 1000 mL equal 1 L.

40. What is $3$ kg expressed in grams?

    $3000$ g. Multiply: $3 \times 1000 = 3000$ grams.

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