The estimated value of 2160 ÷ 28 is __________.

50
70
30
80

hint Hint:

When you divide multiples of 10, 100, and 1,000 knowing your basic facts and place-value, patterns can help you find the answer.

The correct answer is: 70

$First comma space we space need space to space find space the space compatible space numbers space for space both. Hence comma 2160 space is space close space to space its space hundreds space place. space So comma space 2160 space rounds space to space 2100. 28 space is space close space to space its space tens space place. space So comma space 28 space rounds space to space 30. space space therefore 2100 space and space 30 space are space compatible space numbers. Now comma space Using space division space patterns comma 2100 divided by 30 space equals space 210 divided by 3 space equals space 70 therefore space 2100 divided by 30 space equals space 70 H e r e comma 70 space cross times space 30 space equals space 2100 S o comma space a space g o o d space e s t i m a t e space o f space 2160 divided by 28 space i s space 70. space$

Darcy has 568 earmuffs in stock. If she can put 18 earmuffs on each shelf, the number of shelves does she need for all the earmuffs is (estimated value)

MathematicsGrade5

Grade5

Mathematics

Stephen can frame 20 photographs in a day. He has an order of 2400 pictures. The number of days he takes to finish the order is ____________.

MathematicsGrade5

Grade5

Mathematics

In a town, there are 83 clinics serving the population of 24,742. The population served per clinic is _____________.

MathematicsGrade5

Grade5

Mathematics

The value of 5400 ÷ 60 is ________.

An area model is a rectangular diagram or model used for multiplication and division problems, in which the factors or the quotient and divisor define the length and width of the rectangle. We can break one large area of the rectangle into several smaller boxes, using number bonds, to make the calculation easier.