Number Chart to 120 Missing Numbers

Before handing out the worksheet, briefly introduce the concept with a short oral warm-up or a visual model on the board. Let students work through the first item together as a class, then finish the rest independently or with a partner, encouraging them to talk through their thinking: "What strategy are you using? How do you know that is right?" After completing the worksheet, review any missed problems together and discuss the reasoning rather than just the answer. For extra support, let students use manipulatives or draw pictures alongside the written problems. These counting practice: 'before' and 'after' worksheets work well as daily practice, homework, or a focused review activity.

Fill in the missing numbers on an 81 to 120 number chart. A number chart counts by ones across each row. Each number is 1 more than the number before it, and 10 more than the number above it. The directions on the page read: Write the missing numbers in the chart. Then, write the missing numbers in each counting row. The answer key shows every answer.

Yes, both. We made it for 1st Grade number charts & counting, and the page works the same whether it lands on a kitchen table or a center rotation. At home, most families go through it together and talk the answers out loud, and that talking is where most of the learning happens with counting practice: 'before' and 'after'. In class it runs well as independent work while you pull a small group. Print one copy or thirty, whichever the day needs.

'Before' and 'after' language underpins counting on and counting back strategies, which are foundational for efficient 1st grade addition and subtraction.

'Before/after' is positional and sequential while 'greater/less than' is comparative - both are essential, but 'before/after' develops sequencing fluency first.

Pointing to a number on a class number line and asking the class to name what comes before or after turns the worksheet skill into an interactive visual routine.

First graders should count to 120 starting from any number, read and write numerals to 120, and understand that the two digits of a two-digit number represent tens and ones (CCSS 1.NBT.A.1, 1.NBT.B.2). They should also skip count by 2s, 5s, and 10s.

A hundred chart helps students see number patterns, practice skip counting, and understand place value visually. Students can color patterns (every 5th number, every 10th number), find missing numbers, and see how numbers increase by rows and columns.

Skip counting means counting by a number other than 1 (by 2s: 2, 4, 6, 8 or by 5s: 5, 10, 15, 20). It builds the foundation for multiplication and helps students count money and tell time. Number chart worksheets where students highlight skip counting patterns make this concept visual.