Math Drills

Subtraction up to 20

Word Problems

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What this worksheet covers

Grade: Grade 1 (Elementary School)
Topic: Addition and Subtraction up to 20
Worksheet: Subtraction up to 20

Keeping the tens place intact and working only in the ones is the procedure practiced here, with numbers as far as twenty. Every equation has been picked so that no borrowing arises, 19 - 6 among them, and the group of ten never needs to be touched. The items change shape from Calculation through Fill in the Blank to Word Problems, but the same procedure runs through all of them.

Taking the 1 in the tens place as something to subtract from as well shrinks the answer down to a single digit. Running a finger along the equation shows whether the number being taken away is aimed at the ones alone. In Fill in the Blank, the two numbers get subtracted even where the box stands at the far left, and those items alone come out wrong.

Only the sign has changed; splitting a number by place, the thing to keep an eye on, is shared with Sums up to 20. Calculation inside twenty is complete with these two lessons, and Adding and Subtracting Tens goes on to move the tens digit itself.

Word Problems5 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)At the sweets shop, there are 20 donuts. If you eat 9, how many are left? Answer □
Answer: 11donuts
(2)At the store, there are 20 candies. If you eat 8, how many are left? Answer □
Answer: 12candies
(3)In Noah's pencil case, there are 14 pencils. If he uses 3, how many are left? Answer □
Answer: 11pencils
(4)Mom bought 18 carrots. If she uses 6, how many are left? Answer □
Answer: 12carrots
(5)There are 12 chicks in the chicken coop. If 1 flies away, how many are left? Answer □
Answer: 11chicks

What to do next

Sums up to 20Sums up to 20 Calculation

Next unit: Adding and Subtracting Tens