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1st Grade Math

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Spatial Reasoning icon

Spatial Reasoning

1. Left, Middle, Right

2. Top, Middle, Bottom

3. Location in a Grid

4. Above and Below

5. Beside and Next to

6. Counting to 10

7. Counting by 2s

8. Counting by 10s

9. Counting by 10's and 1's to 20

10. Skip Counting by 5's

11. Counting to 100

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Understanding Addition

12. What Is Addition?

13. Addition Using Number Lines

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Addition Practice

14. Adding by 0 and 1

Number Sense icon

24. Number Lines

25. Even and Odd Numbers

26. Place Values

27. Convert Between Tens and Ones

28. Write Numbers as Tens and Ones

29. Spelling Numbers up to Ten

30. Writing Two-Digit Numbers in Words

Mastering Addition icon

Mastering Addition

31. Adding One-Digit to Two-Digit Numbers

32. Beginning Double-Digit Addition

33. Regrouping Tens and Ones

34. Double-Digit Addition With Regrouping

35. Adding Multiples of 10

36. Addition to 20

37. Addition Word Problems

38. Related Addition Equations

39. Addition Equations: True or False

40. Adding Three Numbers

Understanding Subtraction icon

Understanding Subtraction

41. Subtraction Basics

42. Number Line Subtraction

Subtraction Practice icon

Subtraction Practice

43. Subtracting 0, and All

44. Subtracting From 1, 2, 3

45. Subtracting From 4

46. Subtracting From 5

47. Subtracting From 6

48. Subtracting From 7

49. Subtracting From 8

50. Subtracting From 9

Mastering Subtraction icon

Mastering Subtraction

51. Subtracting One-Digit from Two-Digit Numbers

52. Subtraction with Regrouping

53. Subtracting Multiples of 10

54. Subtraction Equations: True or False

55. Making a Number using Subtraction

56. Subtraction Word Problems

57. Subtraction Facts to 20

58. Related Subtraction Equations

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Mixed Operations

59. Relate Addition to Subtraction

60. Comparing Numbers

61. Comparing Numbers up to 100

62. Comparison Word Problems

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Data and Graphs

63. Tally Charts

64. Picture Graphs (Pictographs)

Measurement icon

67. Length, Width, and Height

68. Measure Using Objects

69. Measure Using an Inch Ruler

70. How to Read a Thermometer

73. Sorting Objects by Length

74. Sorting Numbers

Estimation icon

76. Telling Time

77. Analog Clocks: Hours

79. Analog Clocks: Half-hours

80. Match Analog and Digital Clocks

81. Days of the Week

82. Seasons of the Year

83. Months of the Year

84. Read a Calendar

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Two-dimensional Shapes

86. Shape Facts

87. Vertices and Sides

88. Compare Sides and Vertices

89. Flip Slide and Turn

90. Open and Closed Shapes

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Three-dimensional Shapes

94. 3D Shape Facts

95. Vertices, Faces, and Edges

96. Compare Vertices, Faces, and Edges

97. Shapes Traced from 3D Objects

98. Shapes of Faces from 3D Objects

99. Shapes of Everyday Objects

100. Equal Parts: Halves and Fourths

101. Equal Parts: Halves, Thirds, and Fourths

102. Simple Fractions

103. Match Shapes to Simple Fractions

104. Simple Fractions from Groups

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106. Roman Numerals

107. Adding Three Numbers Word Problems

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