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  • Grade 4: Mental Computation And Estimation
Grade 4
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Grade 4 - Mental Computation And Estimation

total lessons: 23
NºActivity titletype

Rounding And Estimating

G4.5.1
Rounding a 4-digit Number to the Nearest Hundred
G4.5.2
Using Rounding to Check the Reasonableness of Sums
G4.5.3
Using Rounding to Check the Reasonableness of Differences
G4.5.4
Using Rounding to Check the Reasonableness of Products
G4.5.7
Rounding Numbers to the Greater Thousand
G4.5.8
Rounding Numbers Exactly Halfway Between to the Greater Thousand
G4.5.9
Rounding Numbers to the Thousand that is Less
G4.5.10
Using Rounding to Estimate Sums
G4.5.11
Using Rounding to Estimate Differences
G4.5.12
Using Rounding to Estimate Products
G4.5.13
Using Compatible Numbers to Estimate Quotients
G4.5.14
Using Rounding to Estimate Quotients

Using Front-End Estimation

G4.5.15
Finding the Leading Digit
G4.5.16
Estimating Sums and Differences Using Front-End Estimation
G4.5.17
Checking Sums and Differences Using Front-End Estimation
G4.5.18
Using Front-End Estimation to Check the Reasonableness of Sums
G4.5.19
Using Front-End Estimation to Check the Reasonableness of Differences
G4.5.20
Using Front-End Estimation to Check the Reasonableness of Products
G4.5.21
Using Front-End Estimation with Adjustment to Estimate Sums
G4.5.22
Using Front-End Estimation to Estimate Differences by Adding the Adjustment
G4.5.23
Using Front-End Estimation to Estimate Differences by Subtracting the Adjustment