Subtract $73-66$ using split method.

Subtract $91-72$ using split method.

Subtract $95-53$ using split method.

$714-593$

Calculate the difference by estimation to the nearest hundreds and verify by actual subtraction.

Calculate the difference by estimation to the nearest hundreds and verify by actual subtraction.

$924-678$

Calculate the difference by estimation to the nearest hundreds and verify by actual subtraction.

$560-394$

Calculate the difference by estimation to the nearest hundreds and verify by actual subtraction.

$583-385$

Calculate the difference by estimation to the nearest hundreds and verify by actual subtraction.

$796-235$