Основно съдържание
Math
Pennsylvania Math
Grade 2: Numbers and Operations
CC.2.1.2.B.1
Fully covered
- Compare 2-digit numbers
- Compare 3-digit numbers
- Comparing whole numbers
- Greater than and less than symbols
- Hundreds, tens, and ones
- Identify the value of a digit (ones, tens, hundreds)
- Identifying value in digits
- Intro to place value
- Place value blocks within 1,000
- Place value tables within 1,000
- Place value tables within 1,000
- Regroup whole numbers
- Regrouping whole numbers: 675
- Use place value blocks to show numbers within 1,000
CC.2.1.2.B.2
Partially covered
- Count money (U.S.)
- Counting American coins
- Counting by 10s
- Counting dollars
- Expanded form of numbers
- Number and word form of a number
- Skip-count by 10s
- Skip-count by 5s
- Skip-counting by 100s
- Skip-counting by 100s
- Skip-counting by 5s
- Word form and expanded form
- Write numbers in different forms
- Write numbers in number and expanded form
- Write numbers in number and word form
- Write numbers in word and expanded form
CC.2.1.2.B.3
Partially covered
- 2-step addition word problems within 100
- 2-step subtraction word problems within 100
- Add 2-digit numbers by making tens
- Add and subtract on the number line word problems
- Add on a number line
- Add using groups of 10 and 100
- Add within 1,000 using place value blocks
- Add within 100 using a number line
- Add within 100 using place value blocks
- Adding 10 or 100
- Adding 1s, 10s, and 100s
- Adding 2-digit numbers without regrouping
- Adding 3-digit numbers (no regrouping)
- Adding 53+17 by making a group of 10
- Adding and subtracting on number line
- Adding and subtracting on number line word problems
- Adding by making a group of 10
- Adding two digit numbers on a number line
- Adding up to four 2-digit numbers
- Adding with regrouping
- Addition and subtraction with number lines
- Addition using groups of 10 and 100
- Addition word problem: horses
- Addition word problems within 100
- Break apart 2-digit addition problems
- Break apart 3-digit addition problems
- Breaking apart 2-digit addition problems
- Breaking apart 3-digit addition problems
- Estimate to add multi-digit whole numbers
- Find the missing number (add and subtract within 100)
- Missing numbers in addition and subtraction
- Multi step addition word problem
- Multi-step subtraction word problem
- Select strategies for adding within 100
- Select strategies for adding within 1000
- Strategies for adding 2-digit numbers
- Subtract on a number line
- Subtract within 1,000 using place value blocks
- Subtract within 100 using a number line
- Subtract within 100 using place value blocks
- Subtract within 20
- Subtracting 1, 10, or 100
- Subtracting 10s using place value
- Subtracting 1s using place value
- Subtracting 1s, 10s, and 100s
- Subtracting 3-digit numbers (no regrouping)
- Subtracting a 1-digit number with regrouping
- Subtracting two-digit numbers without regrouping
- Subtracting with place value blocks (regrouping)
- Subtraction word problem: basketball
- Subtraction word problem: crayons
- Subtraction word problems within 100
- Understanding place value when adding ones
- Understanding place value when adding tens