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Math Drills

Sums up to 20

C

Word Problems

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What this worksheet covers

Worksheet
Sums up to 20

Sums that finish inside twenty, and whose ones place never passes ten, make up the whole lesson. The 1 in the tens place usually sits still while the ones digits are added, and the only exception is an equation whose ones come to exactly ten and give twenty. Alongside Calculation come Fill in the Blank, which asks for the missing number, and Word Problems, where the equation is built from a situation.

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Failing to copy the 1 in the tens place leaves an answer stuck at one digit. Counting the digits in the answer is enough to catch it. Fill in the Blank also draws out items where the tens place is moved as well, and the answer runs past twenty.

This is the way into the unit. Not one new procedure has been introduced, and what holds everything up is the ones-place work memorized in Addition up to 10. Subtraction up to 20 then carries the same view over to the subtracting side.

  • Word Problems6 questions
Questions & answers

Problems and answers on this worksheet

These are the problems in “Addition and Subtraction up to 20”, shown with their answers.

  1. (1)On the mountain, 14 birds are perched. If 5 more fly in from the woods, how many will there be in all? Answer □

    Answer: 19birds

  2. (2)In the henhouse, Lucas picked up 13 eggs. If he picks up 6 more, how many will there be in all? Answer □

    Answer: 19eggs

  3. (3)At school, Ivanna has 10 pencils. If her mom gives her 6 more, how many will there be in all? Answer □

    Answer: 16pencils

  4. (4)In the henhouse, there are 13 chicks. If 2 more come from the eggs, how many will there be in all? Answer □

    Answer: 15chicks

  5. (5)In the field, Hannah picked up 12 apples. If she picks up 5 more, how many will there be in all? Answer □

    Answer: 17apples

  6. (6)In the rice field, there are 11 frogs. If 8 more come from the path, how many will there be in all? Answer □

    Answer: 19frogs

What to do next

Sums up to 20Sums up to 20 Calculation
More worksheets in this unit
Sums up to 20Sums up to 20 Fill in the BlankSubtraction up to 20Subtraction up to 20 CalculationSubtraction up to 20Subtraction up to 20 Fill in the BlankSubtraction up to 20Subtraction up to 20 Word ProblemsAddition and Subtraction up to 20 ReviewAddition and Subtraction up to 20 Review CalculationAddition and Subtraction up to 20 ReviewAddition and Subtraction up to 20 Review Fill in the BlankAddition and Subtraction up to 20 ReviewAddition and Subtraction up to 20 Review Word Problems
Next unit: Adding and Subtracting Tens