3.OA.3 Assessment

Front

What is division and how is it used in grouping items?

Back

Division is a mathematical operation that involves splitting a number into equal parts. It is used to determine how many groups can be formed from a total number of items or how many items are in each group.

Front

How do you write a division equation for equal grouping?

Back

A division equation for equal grouping can be written as 'Total number of items ÷ Number of groups = Number of items per group'. For example, 15 ÷ 3 = 5.

Front

What is the relationship between multiplication and division?

Back

Multiplication and division are inverse operations. If a × b = c, then c ÷ b = a and c ÷ a = b.

Front

How can you find the number of items in each group when given a total and the number of groups?

Back

To find the number of items in each group, divide the total number of items by the number of groups. For example, if there are 18 cups and 6 boxes, then 18 ÷ 6 = 3 cups per box.

Front

What is the formula to calculate the total number of items needed when distributing items equally?

Back

The formula is: Total items needed = Number of groups × Items per group. For example, if David wants to give 4 friends 5 books each, then 4 × 5 = 20 books.

Front

How do you calculate the cost per item when given the total cost and the number of items?

Back

To find the cost per item, divide the total cost by the number of items. For example, if Sarah buys 6 pieces of gum for 24 cents, then 24 ÷ 6 = 4 cents per piece.

Front

What is the mass of multiple items if you know the mass of one item?

Back

To find the total mass of multiple items, multiply the mass of one item by the number of items. For example, if one penny weighs 3 grams, then 4 pennies weigh 3 × 4 = 12 grams.

Front

What is the importance of understanding equal groups in division?

Back

Understanding equal groups in division helps in solving real-world problems where items need to be distributed evenly, such as sharing, packing, or budgeting.

Front

How can you represent a division problem visually?

Back

A division problem can be represented visually using arrays, number lines, or grouping objects to show how items are divided into equal parts.

Front

What is a practical example of using division in everyday life?

Back

A practical example of using division is when sharing food among friends, such as dividing a pizza into equal slices.