1st Grade Adding 0 Worksheet: Fifteen Vertical Sums with Zero

Ask a six-year-old what 7 + 0 makes, and you may hear "eight." After a week of adding one more, zero can feel like it should change something. This 1st grade adding 0 worksheet gives your child fifteen sums to test that idea. Each colored box holds one vertical addition. Sometimes the zero sits at the bottom, as in 9 + 0, and sometimes it comes first, as in 0 + 4 or 0 + 8, which surprises some children. One box even asks for 0 + 0. Every total stays at 9 or under, so attention can go to the rule rather than to counting. A second page gives the answer key.

Why zero gets its own page

Zero is a strange number for young children. It means "nothing," yet it has a numeral, a place on the number line and a role in sums. Adding zero leaves a number unchanged: 6 + 0 is still 6. Mathematicians call that the identity property, and 1st grade is where children first meet it.

The page tests the rule from both sides. In the green row, 7 + 0 and 0 + 4 sit side by side, so zero on top and zero below both appear early. Next, 0 + 0 in the second row asks the hardest question of all: what is nothing plus nothing?

Once the rule clicks, fifteen facts become one idea. That is real efficiency.

At the table: the zero that seems to add one

Start with 7 + 0 in the top row. Ask your child to hold up seven fingers, then show zero more, so they can see that nothing new appears.

The likely slip is writing one more than the number, especially after pages of adding 1. A box like 8 + 0 may come back as 9. Instead of correcting, ask your child to show it with fingers: "How many fingers did you add?"

A different slip waits at 0 + 9, the very first box. Some children see zero first and write 0. If that happens, point to the 9 and ask, "Where did the nine go?"

Finally, try 0 + 0 together. Let your child explain the answer in their own words.

Empty hands and a Go Fish draw

Zero is easy to show at home. Put five apples in a bowl, then pretend to add some with empty hands, and ask how many apples there are now. Later, tap an empty shelf and ask your child to count what is on it.

Card games give zero a real meaning too. In Go Fish, a player who hears "Go fish" may get no cards from the other player. So their pile plus zero cards stays the same. While you play, ask your child to say the sum aloud.

Once you finish the page, check it with the answer key side by side. Then name the thinking: "You noticed that zero keeps the same number."