Unit 2
Parent Letter
Standards
Write and interpret numerical expressions.
OA.2 Write simple expressions that record calculations with numbers, and interpret numerical expressions without evaluating them. For example, express the calculation “add 8 and 7, then multiply by 2” as 2 × (8 + 7). Recognize that 3 × (18932 + 921) is three times as large as 18932 + 921, without having to calculate the indicated sum or product.
Understand the place value system.
NBT.3 Read, write, and compare decimals to thousandths.
a. Read and write decimals to thousandths using base-ten numerals, number names, and expanded form, e.g., 347.392 =
3 × 100 + 4 × 10 + 7 × 1 + 3 × (1/10) + 9 × (1/100) + 2 × (1/1000).
b. Compare two decimals to thousandths based on meanings of the digits in each place, using >, =, and < symbols to record the results of comparisons.
NBT.4 Use place value understanding to round decimals to any place.
Perform operations with multi-digit whole numbers and with decimals to hundredths.
NBT.5 Fluently multiply multi-digit whole numbers using the standard algorithm.
(3 digit by 1 digit and 2 digit by 2 digit assessed in this unit)
NBT.6 Find whole-number quotients of whole numbers with up to four-digit dividends and two-digit divisors, using strategies based on place value, the properties of operations, and/or the relationship between multiplication and division. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models.
(3 digit by 2 digit assessed in this unit)
NBT.7 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. (addition and subtraction computation only assessed in this unit)
Represent and interpret data.
MD.2 Make a line plot to display a data set of measurements in fractions of a unit (1/2, 1/4, 1/8). Use operations on fractions for this grade to solve problems involving information presented in line plots. For example, given different measurements of liquid in identical beakers, find the amount of liquid each beaker would contain if the total amount in all the beakers were redistributed equally.
(Construction and assessment of line plots will be limited to whole numbers in this unit.)
OA.2 Write simple expressions that record calculations with numbers, and interpret numerical expressions without evaluating them. For example, express the calculation “add 8 and 7, then multiply by 2” as 2 × (8 + 7). Recognize that 3 × (18932 + 921) is three times as large as 18932 + 921, without having to calculate the indicated sum or product.
Understand the place value system.
NBT.3 Read, write, and compare decimals to thousandths.
a. Read and write decimals to thousandths using base-ten numerals, number names, and expanded form, e.g., 347.392 =
3 × 100 + 4 × 10 + 7 × 1 + 3 × (1/10) + 9 × (1/100) + 2 × (1/1000).
b. Compare two decimals to thousandths based on meanings of the digits in each place, using >, =, and < symbols to record the results of comparisons.
NBT.4 Use place value understanding to round decimals to any place.
Perform operations with multi-digit whole numbers and with decimals to hundredths.
NBT.5 Fluently multiply multi-digit whole numbers using the standard algorithm.
(3 digit by 1 digit and 2 digit by 2 digit assessed in this unit)
NBT.6 Find whole-number quotients of whole numbers with up to four-digit dividends and two-digit divisors, using strategies based on place value, the properties of operations, and/or the relationship between multiplication and division. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models.
(3 digit by 2 digit assessed in this unit)
NBT.7 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. (addition and subtraction computation only assessed in this unit)
Represent and interpret data.
MD.2 Make a line plot to display a data set of measurements in fractions of a unit (1/2, 1/4, 1/8). Use operations on fractions for this grade to solve problems involving information presented in line plots. For example, given different measurements of liquid in identical beakers, find the amount of liquid each beaker would contain if the total amount in all the beakers were redistributed equally.
(Construction and assessment of line plots will be limited to whole numbers in this unit.)
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Place Value and Place Value Decimals
Math Live (Place Value Lesson from Lessons Menu)
Place Value Millionaire
Place Value Hockey Game ABCya!
Fuel the Brain Interactives Base Ten
Fling the Teacher Decimals: Places and Rounding
Study Jams Rounding Decimals
Puppy Pull Language of Decimals Game
Half Court Rounding Game
Rounding Decimals to nearest hundredth quick checkup practice
Rounding Decimals to the nearest tenths quick practice checkup
Spy Guys Problem Solving with Decimals
Scooter Quest Rounding Decimals Game
Fruit Shoot Game Comparing Decimals
Ordering Decimals Game
Math Live (Choose Comparing and Ordering Decimals from Lessons Menu)
Place Value in Decimals IXL
Math Games Hundredths Decimal Matching
Math Games Tenths Decimal Matching
Scooter Quest Game 2 Place Value Decimals
Placing Decimals on a number line teaching video
Place Value Made Easy Tutorial
Battleship Numberline Brain Pop
IXL Decimals on a number line
Identifying Decimals on a Number Line Math Man
Decimal and Whole Number Quia Jeopardy
Finding the place value of decimals
Decimal Games
Multiplying and Dividing Decimals by Powers of Ten
Exponents Powers of Ten Practice
Dividing Decimals by powers of 10 teaching video
Manga High Multiply and Divide Decimals by 10s, 100s, and 1,000s