Math MP3-old
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Operations & Algebraic Thinking (OA) 1.OA.B.4
1.OA.B.4
Understand subtraction as an unknown-addend problem. For example, subtract 10 – 8 by finding the number that makes 10 when added to 8.
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Relating addition and subtraction | Basic addition and subtraction | Early Math | Khan Academy
Operations & Algebraic Thinking (OA)
1.OA.B4
IXL Activities
Operations and Algebraic Thinking (OA) Games
Represent and solve problems involving addition and subtraction.
Understand and apply properties of operations and the relationship between addition and subtraction.
Add and subtract within 20.
Work with addition and subtraction equations.
Addition Games
Number Bonds 10 (Easy)
Combine number balls to make sums of 10.
Number Bonds 20 (Medium)
Combine number balls to make sums of 20.
Number Bonds 30 (Medium-Challenging) Combine number balls to make sums of 30.
Number Bonds 40 (Challenging)
Combine number balls to make sums of 40.
Alien Addition
Practice sums and addition facts in this exciting math game.
Jet Ski Addition
Practice sums within 20 and addition facts with this game.
Tug Team Addition
Practice sums within 20 and addition facts with this fun-filled math game.
Math Monster Addition
Choose one or more addends. Can you make all 12 monster friends appear?
Zogs and Monsters Addition
Move the friendly zogs to the correct sums without being captured.
Puzzle Pics Addition
Choose a target sum (10 to 20) to practice. Place the puzzle piece on the number in the grid.
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Kitten Match Addition
Practice sums of 10 and addition facts by clicking two fur balls that make 10.
Canoe Puppies Addition (Challenging)
Add two-digit numbers correctly to win the race.
Subtraction Games
Island Chase
Practice subtraction facts (within 20) with a fun math game in a tropical setting.
Sailboat Tug
Practice subtraction facts (within 20) with a fun math game in a tropical setting.
Math Monster Subtraction
Choose one or more numbers to subtract. Can you make all 12 monster friends appear?
Ducky Race Subtraction
Practice subtraction facts in a duck racing math game. (Positive and Negative Numbers) (Challenging)
Minus Mission (Challenging)
Practice subtraction facts with a space-themed math game.
Puzzle Pics Subtraction Choose the largest starting number (10 to 20). Place the puzzle piece on the missing number in the grid.
Number & Operations in Base Ten (NBT) 1.NBT.B.2
1.NBT.B.2
Understand that the two digits of a two-digit number represent amounts of tens and ones. Understand the following as special cases:
1.NBT.B.2a
10 can be thought of as a bundle of ten ones called a "ten."
1.NBT.B.2b
The numbers from 11 to 19 are composed of a ten and one, two, three, four, five, six, seven, eight, or nine ones.
1.NBT.B.2c
The numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 refer to one, two, three, four, five, six, seven, eight, or nine tens (and 0 ones).
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Introduction to place value | Place value (tens and hundreds) | Early Math | Khan Academy
Number & Operations in Base Ten (NBT)
1.NBT.B2a
IXL Activities
Number & Operations in Base Ten (NBT)
1.NBT.B2b
IXL Activities
Number & Operations in Base Ten (NBT)
1.NBT.B2c
IXL Activities
Number & Operations in Base Ten (NBT) 1.NBT.B.3
1.NBT.B.3
Compare two two-digit numbers based on meanings of the tens and ones digits, recording the results of comparisons with the symbols >, =, and <.
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Comparing whole numbers | Place value (tens and hundreds) | Early Math | Khan Academy
Khan Academy: Practice comparing numbers using the symbols <, >, and =. All numbers in these problems are within 100.
Do these activities: KHAN ACADEMY 1.NBT.B.3 ACTIVITY 1 - Comparing two-digit numbers 1
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Place value example with 42 | Place value (tens and hundreds) | Early Math | Khan Academy
Number & Operations in Base Ten (NBT)
1.NBT.B3
IXL Activities
Number & Operations in Base Ten (NBT) 1.NBT.C.4
1.NBT.C.4
Add within 100, including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10, 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. Understand that in adding two-digit numbers, one adds tens and tens, ones and ones; and sometimes it is necessary to compose a ten.
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Khan Academy: Practice comparing numbers using the symbols <, >, and =. All numbers in these problems are within 100.
Do these activities: KHAN ACADEMY 1.NBT.C.4 ACTIVITY 1 - Adding 1s or 10s - Practice solving problems like 34+1 and 34+10.
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Understanding place value when adding ones | Early Math | Khan Academy
Do these activities: KHAN ACADEMY 1.NBT.C.4 ACTIVITY 3 - Adding two-digit numbers (no regrouping)
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Do these activities: KHAN ACADEMY 1.NBT.C.4 ACTIVITY 4 - Breaking apart two-digit addition problems
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Adding by getting to group of 10 first | Early Math | Khan Academy
Number & Operations in Base Ten (NBT)
1.NBT.C4
IXL Activities
Number & Operations in Base Ten (NBT)
Extend the counting sequence, understand place value, and apply place value understanding.
Counting Games
Jumping Chicks
Power your chicks by counting lily pads.
Koala Karts
Power your racecar by counting discs.
Challenging Games
Canoe Puppies Race Game
Add two-digit numbers correctly to win the race.
Missing Number Addition
Choose a target sum from (20-100) to practice.
Missing Number Subtraction
Choose a target difference from (20-100) to practice.
Geometry (G) 1.G.A.1
1.G.A.1
Distinguish between defining attributes (e.g., triangles are closed and three-sided) versus non-defining attributes (e.g., color, orientation, overall size); build and draw shapes to possess defining attributes.
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*Do This*
*Do This*
Do these activities: KHAN ACADEMY 1.G.A.1 ACTIVITIES - Naming Shapes 1
Do these activities: KHAN ACADEMY 1.G.A.1 ACTIVITIES - Naming Shapes 2
Do these activities: KHAN ACADEMY 1.G.A.1 ACTIVITIES - Naming Shapes 3
Geometry (G)
1.G.A1
IXL Activities
Geometry (G) 1.G.A.2
1.G.A.2
Compose two-dimensional shapes (rectangles, squares, trapezoids, triangles, half-circles, and quarter-circles) or three-dimensional shapes (cubes, right rectangular prisms, right circular cones, and right circular cylinders) to create a composite shape, and compose new shapes from the composite shape.
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Skills for this standard are coming soon to Khan Academy.
Khan Academy: Skills for this standard are coming soon.
Do these activities: KHAN ACADEMY 1.G.A.2 ACTIVITIES (Coming Soon)
Geometry (G) Games
Reason with 2D and 3D shapes and their attributes.
Shape Games
Shape Builder
Build patterns, create and solve critical thinking problems, and explore geometric shapes.
Geoboard
Explore area and perimeter with a geoboard. Make shapes with rubber band.
Kangaroo Hop
Power your kangaroo by recognizing 2D and 3D shapes.
4-Piece Tangrams (Advanced)
Four shapes can be rotated and flipped to fill a shape.
Unit 7 Lesson 1 - Geometry and Attributes
Unit 7 Lesson 2 - Explorations
BrainPopJr. - Congruent and Similar Shapes
Unit 7 Lesson 5 - Spheres, Cylinders, and Rectangular Prisms
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