# UNit 2: Adding and Subtracting Decimals

•

## ### Topics covered in Unit 2: I can..

• I can recognize or recall, decimal, standard form, and expanded form.
• I can understand the value of each place.
• I can multiply by powers of 10.
• I can divide by powers of 10.
• I can explain patterns in the number of zeros of the product when multiplying a number by a power of 10.
• I can explain patterns in the placement of the decimal point when a decimal is multiplied by a power of 10.
• I can explain patterns in the placements of the decimal when a decimal is divided by a power of 10.
• I can use whole number exponents to denote powers of 10.
• I can learn and apply scientific notation in context.

• I can recognize or recall decimal, inverse operation, and estimate.
• I can use powers of 10, including exponents, to multiply and divide with decimals and whole numbers.
• I can add decimals to the hundredths, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationships between addition and subtraction; relate the strategy to a written method and explain the reasoning used.
• I can subtract decimals to the hundredths, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationships between addition and subtraction; relate the strategy to a written method and explain the reasoning used.
• I can multiply decimals to the hundredths, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationships between addition and subtraction; relate the strategy to a written method and explain the reasoning used.
• I can divide decimals to the hundredths, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationships between addition and subtraction; relate the strategy to a written method and explain the reasoning used.
• UNIT 2 VIDEOS