Use manipulatives to represent the composition of 10 ones as 1 ten with two-digit addends. Recognize that equal parts of an identical rectangle can have different shapes. Strategies for Decomposing a Ten Standard: Decompose to subtract from a ten when subtracting within and apply to one-step word problems. Solve two-step word problems within Represent arrays and distinguish rows and columns using math drawings. Creating an Inch Ruler Standard:
Measure to compare the differences in lengths using inches, feet, and yards. Subtract multiples of and some tens within 1, Use manipulatives to represent additions with two compositions. Write base ten numbers in expanded form. Represent two-digit sums and differences involving length by using the ruler as a number line. Relate manipulative representations to a written method. Solve two-step word problems within
Eureka math lesson 12 homework answer key
Subtract from multiples of and from numbers with zero in the tens place. Represent subtraction with and without the decomposition of 1 ten as 10 ones with manipulatives. Video Lesson 14Lesson Strategies for Addition and Subtraction Within Standard: Use the associative property to make a hundred in one addend. Collect leseon record measurement data in a table; answer questions and summarize the data set.
Pair objects and skip-count to relate to even numbers. Bundle and count ones, tens, and hundreds to 1, Investigate the pattern of even numbers: Write, read, and relate base ten numbers in all forms.
Decompose to subtract from a ten when subtracting within and apply to one-step word problems. Relate manipulative representations to the subtraction algorithm, and use addition to explain why the subtraction method works. Apply conceptual understanding of measurement by solving two-step word problems Video. Combine shapes to create a composite shape; create a new shape from composite shapes.
Solve elapsed time problems involving whole hours and a half hour. Add and subtract multiples of 10 including counting on to subtract. Strategies for Decomposing a Ten Standard: Use iteration with one physical unit to measure. Count up to 1, on the place value chart.
Compose arrays from rows and columns, and count to find the total using objects. Solve word problems using data presented in a bar graph. Use attributes to identify and draw different quadrilaterals including rectangles, rhombuses, parallelograms, and trapezoids. Video Lesson 2Lesson 3: Add within using properties of addition to make a ten.
Common Core Grade 2 Math (Worksheets. Homework, Lesson Plans, Examples, Solutions)
Use math drawings to represent equal groups, and relate to repeated addition. Understand Concepts About the Ruler Standard: Explore a situation with more than 9 groups of Use grid paper to create designs to develop spatial structuring.
Use square tiles to compose a rectangle, and relate to the array model. Add multiples of and some tens within 1, Formation of Equal Groups Standard: Video Lesson 27Lesson Model and use language to tell about 1 more and 1 less, 10 more and 10 less, and more and less. Compare totals below to new groups below as written methods. Draw and label a picture graph to represent data with up to four categories.
Represent subtraction with and without the decomposition when there is a three-digit minuend.