Use knowledge of rounding, number operations and inverses to estimate and check calculations
Round 3-digit or 4-digit numbers to the nearest 10 or 100. Round decimals to the nearest whole number, or to 1 decimal place.
|Placing Calculations on a Number Line||
Place the answer to calculations on a number line. An enormous array of choice. Addition, subtraction, multiplication and division. Ranging from adding numbers to 10 to multiplying 4 digit numbers. Great for combining teaching calculations and approximations with developing an understanding of place value.