Curated OER
Mentally Add and Subtract 10 or 100
Don't let the title of this one fool you; scholars skip count only by 10 in this number sequence activity. They fill in missing numbers on a number line to complete each sequence, adding or subtracting 10. There are two addition problems...
Curated OER
Mentally Add and Subtract 10 or 100
Here are some number lines that need to be completed. There are two number sequences, one to test addition skills and the other for subtraction. Both sequences include counting by 10, but the subtracting question has scholars count...
Curated OER
Count by 5s, 10s, and 100s
These number sequences are missing digits! Each of the six has one missing number and scholars must figure out what it is. Here's the pattern, though: all of these sequences involve counting by 5s, 10s, and 100s. Learners add one of...
Curated OER
Count Backwards and Complete the Series
In this count backwards activity, students count backwards from 100 to 95 and complete the series by filling in the missing numbers. Students fill in 3 missing numbers.
Curated OER
Finding Patterns
What's the pattern? Learners skip count to complete 12 sequences, some of which increase and some of which decrease. As they solve each number pattern they count by 2, 3, 4, 5, 6, 10, and 100, getting some extra subtraction and addition...
Curated OER
Counting Back in Tens
In this counting backwards in tens worksheet, 3rd graders count down in tens from 80 to 30, 100 to 50, 110 to 60 and 120 to 70. Students fill in each missing number on each row.
Curated OER
Number Patterns
Which number comes next? The great part about this number sequencing activity is that it increases in difficulty so some learners who aren't challenged by the first few will definitely meet their match with the last couple. In each of...
DK Publishing
Counting Caterpillars
These caterpillars each have a number sequence printed on their segmented bodies, but some numbers are missing! Look at the completed caterpillars as an example, asking kids to notice a possible pattern. They should observe that the...
Curated OER
Counting Back by 1's, 2's, 5's, 10's, 100's Sheet
In this counting back worksheet, students fill in blanks in rows, counting back by 1,2,5,10 or 100 as instructed. A website reference for additional resources is provided.
Curated OER
Take Whole Tens: Subtraction with a Number Line
A tens number line helps your class understand how to "hop" backward to subtract by 10's. Ten practice equations are expressed as math sentences (in word form) using the expressions "take __ from __" and "subtract." A little cartoon...
Math Learning Center
Second Grade Assessments and Scoring Checklists, Common Core State Standards
How are your second graders progressing in their math skills? Find out with a series of math assessment activities. With baseline assessment score sheets for each skill, you can track how well your kids are adding, subtracting, telling...
Curated OER
Brain Booster: Subtraction Strategy- Working Backward
In this daily math problem learning exercise, students complete three activities that help them use subtraction and work backwards. Students show their work using pictures, numbers, or words and may use cubes, number lines or hundred...
Curated OER
Board Game
In this estimation worksheet, students roll dice and land on spaces in this Zombie Board Game and round the 3 digit number to the nearest one hundred. Students complete 30 problems.
Curated OER
The Palindromic Year Problem
In this algebra activity, 9th graders solve word problems containing palindromic years and count how many plaindromic years there are between 1 AD and the next 100 years.
Raytheon
Strategies for Solving Math Word Problems
In this strategies for solving math word problems activity, students read two pages of examples and explanations, then solve 42 addition, subtraction, multiplication and division problems, answer sheet included.
Curated OER
The Stellar Magnitude Scale
In this stellar magnitude scale instructional activity, students use a scale showing the magnitude of objects in the sky to answer 5 questions about the brightness of the moon, the planets and stars.