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Halving and Doubling to Aid Multiplication of Two 2 Digit Numbers WORKSHEET
Suitable for Grades: 5th Grade
CCSS: 5.NBT.B.5, 5.NBT.B.7
CCSS Description: Fluently multiply multi-digit whole numbers using the standard algorithm.
CCSS Description: Add, subtract, multiply, and divide decimals to hundredths, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used.
CCSS Description: Add, subtract, multiply, and divide decimals to hundredths, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used.
Halving and Doubling to Aid Multiplication of Two 2 Digit Numbers WORKSHEET DESCRIPTION
This worksheet encourages learners to think about the mental processes and methods that can aid them when operating with numbers and is a great extension task when doubling and halving or practicing methods for multiplying a two digit number by a single digit.
In this case, students will discover equivalent multiplication calculations such as 24 x 14 = 48 x 7. Students will use this fact in order to make multiplying two 2 digit numbers together simpler. Your learners will also be challenged to consider when this method is and is not helpful.
