US edition · 1st grade

1st grade maths: Common Core coverage

20 of 21 Common Core standards for 1st grade maths are practised in the app. Each one is listed with the skills that practise it. A skill can serve standards from more than one grade, and children can work at a different level in each subject.

Standards and the skills that practise them

• 1.OA.A.1
  • Add within 20: Can add two numbers with a total up to 20.
  • Subtract within 20: Can take one number away from another within 20.
  • Adding and taking away word problems: Can solve a simple story problem by adding or taking away within 20.
• 1.OA.A.2
  • Add three one-digit numbers: Can add three one-digit numbers, looking for pairs that make 10.
• 1.OA.B.3
  • Number bonds to 20: Can recall addition and subtraction facts to 20 quickly.
  • Add three one-digit numbers: Can add three one-digit numbers, looking for pairs that make 10.
• 1.OA.B.4
  • Missing numbers and inverse: Can find a missing number in an addition or subtraction by using the inverse.
• 1.OA.C.5
  • Add within 20: Can add two numbers with a total up to 20.
• 1.OA.C.6
  • Number bonds to 10: Can quickly say the pairs that make 10 and the matching subtraction facts.
  • Number bonds to 20: Can say what to add to a number to make 20.
  • Add within 20: Can add two numbers with a total up to 20.
  • Subtract within 20: Can take one number away from another within 20.
  • Doubles and halves to 20: Can double a number to 10 and halve an even number to 20.
  • Number bonds to 20: Can recall addition and subtraction facts to 20 quickly.
• 1.OA.D.7
  • Missing number problems: Can find the missing number in a sum like 7 = ? − 9.
• 1.OA.D.8
  • Missing number problems: Can find the missing number in a sum like 7 = ? − 9.
• 1.NBT.A.1
  • Count forwards and backwards to 100: Can carry on counting forwards or backwards from any number up to 100.
• 1.NBT.B.2
  • Tens and ones: Can say what each digit in a two-digit number is worth.
• 1.NBT.B.3
  • Compare numbers: more, less, biggest, smallest: Can say which of two numbers is more or less, and pick the biggest or smallest of three.
  • Compare and order numbers to 100: Can compare two numbers to 100 with <, > or = and put numbers in order.
• 1.NBT.C.4
  • Two-digit number plus or minus ones: Can add or subtract a one-digit number to a two-digit number, crossing a ten if needed.
  • Two-digit number plus or minus tens: Can add or subtract a multiple of 10 to a two-digit number.
• 1.NBT.C.5
  • One more and one less (to 100): Can say the number one more or one less than any number to 100.
  • Count in 10s from any number: Can count forwards or backwards in tens from any two-digit number.
• 1.NBT.C.6
  • Two-digit number plus or minus tens: Can add or subtract a multiple of 10 to a two-digit number.
• 1.MD.A.1
  • Longer, taller, heavier, holds more: Can compare two things by length, height, weight or how much they hold.
• 1.MD.A.2
  Not practised.
• 1.MD.B.3
  • O'clock and half past: Can read the time to the hour and half hour from where the hands point.
• 1.MD.C.4
  • Tally charts: Can read a tally chart, counting in fives.
  • Picture graphs and bar graphs: Can read a picture graph or bar graph and total or compare the categories.
• 1.G.A.1
  • 2D shapes and their sides: Can name rectangles, squares, circles and triangles and count their sides.
• 1.G.A.2
  • Build shapes from shapes: Can say which shape two or more shapes make when they are put together.
• 1.G.A.3
  • Half of a number: Can find half of an even number up to 20.
  • Quarter of a number: Can find a quarter of 4, 8, 12, 16 or 20.

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