Games
Grade 4: Mental Computation And Estimation

Grade 4 - Mental Computation And Estimation

total lessons: 22

Nº	Activity title	type
	Rounding And Estimating
G4.5.1	Rounding a 4-digit Number to the Nearest Hundred	Rocketmatics
G4.5.2	Using Rounding to Check the Reasonableness of Sums	Rocketmatics
G4.5.3	Using Rounding to Check the Reasonableness of Differences	Rocketmatics
G4.5.4	Using Rounding to Check the Reasonableness of Products	Mathzapper
G4.5.5	Using Related Multiplication Facts to Check the Reasonableness of Quotients	Rocketmatics
G4.5.6	Estimating Quotients Using Related Multiplication Facts	Rocketmatics
G4.5.9	Rounding Numbers to the Thousand that is Less	Mathzapper
G4.5.10	Using Rounding to Estimate Sums	Rocketmatics
G4.5.11	Using Rounding to Estimate Differences	Rocketmatics
G4.5.12	Using Rounding to Estimate Products	Rocketmatics
G4.5.13	Using Compatible Numbers to Estimate Quotients	Mathzapper
G4.5.14	Using Rounding to Estimate Quotients	Mathzapper
G4.5.15	Estimate Quotients: Games	Buildermatics
	Using Front-End Estimation
G4.5.16	Finding the Leading Digit	Rocketmatics
G4.5.17	Estimating Sums and Differences Using Front-End Estimation	Rocketmatics
G4.5.18	Checking Sums and Differences Using Front-End Estimation	Mathzapper
G4.5.19	Using Front-End Estimation to Check the Reasonableness of Sums	Mathzapper
G4.5.20	Using Front-End Estimation to Check the Reasonableness of Differences	Mathzapper
G4.5.21	Using Front-End Estimation to Check the Reasonableness of Products	Mathzapper
G4.5.22	Using Front-End Estimation with Adjustment to Estimate Sums	Rocketmatics
G4.5.23	Using Front-End Estimation to Estimate Differences by Adding the Adjustment	Mathzapper
G4.5.24	Using Front-End Estimation to Estimate Differences by Subtracting the Adjustment	Mathzapper

Grade 4 - Mental Computation And Estimation

Rounding And Estimating

Using Front-End Estimation