Curated OER
Add 19 to Any 2-Digit Number
For this addition worksheet, students solve 18 problems in which the number 19 is added to a two-digit number. No hints or examples are provided.
Curated OER
Estimating With Decimals
In this math instructional activity, students complete 14 problems where they estimate money amounts and multiplication products using numbers with decimals. Examples are provided in this well-designed instructional activity.
Curated OER
Mental Math Methods
In this mental math activity, students use mental math methods to solve problems. Students complete 1 addition, 1 multiplication, and 1 subtraction problem using these methods.
Curated OER
Perimeter
In this math worksheet, students learn how to find the perimeter of a polygon. Students read the information and answer 6 questions in which the perimeter of figures is calculated.
Curated OER
Mental Math: Use the Properties-Reteach
In this mental math reteach worksheet, students review the commutative, associative and distributive properties, then complete a set of 13 problems. A reference web site is given for additional activities.