Weight Measurement Math Example 3

Follow the full solution, then compare it with the other examples linked below.

Example 3

medium
A recipe calls for 1.51.5 kg of flour. How many grams is that? If you only have a scale in pounds, how many pounds? (1 kg≈2.205 lb1\text{ kg} \approx 2.205\text{ lb})

Solution

  1. 1
    Convert kilograms to grams: 1 kg=1,000 g1\text{ kg} = 1{,}000\text{ g}, so 1.5×1,000=1,500 g1.5 \times 1{,}000 = 1{,}500\text{ g}.
  2. 2
    Convert kilograms to pounds using the given factor: 1.5×2.205=3.3075 lb1.5 \times 2.205 = 3.3075\text{ lb}.
  3. 3
    Round to a reasonable precision: 1.5 kg≈3.31 lb1.5\text{ kg} \approx 3.31\text{ lb}.

Answer

1,500 g≈3.31 lb1{,}500 \text{ g} \approx 3.31 \text{ lb}
Within the metric system, converting kg to g simply requires multiplying by 1,000. Converting between metric and imperial systems requires a conversion factor (1 kg≈2.205 lb1\text{ kg} \approx 2.205\text{ lb}). Always keep track of units to avoid errors.

About Weight Measurement

Measuring how heavy something is using standard units such as grams, kilograms, ounces, and pounds, by comparing an object's weight against known reference amounts on a balance or scale.

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More Weight Measurement Examples

Example 1 easy

A bag of flour weighs 5 pounds. A bag of sugar weighs 3 pounds. Which is heavier, and by how much?

Example 2 medium

A balance scale shows that 1 toy car balances with 6 blocks. If each block weighs 2 ounces, how much

Example 4 easy

A puppy weighs 8 pounds and a kitten weighs 4 pounds. How much do they weigh together?

Example 5 medium

A backpack weighs 9 pounds. After removing some books it weighs 5 pounds. How much did the books wei

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