Curated OER
Missing Numbers
In this number sequence activity, students examine 6 number sequences and fill in 1 missing number in each sequence. Next, students use the strategy of counting by ten to complete 5 different number sequences.
Curated OER
Counting in Tens, Beginning with 70
Mr. Mouse instructs kids to fill in the blanks by counting 10's. They skip count by 10s to finish each of the 6 number lines. Learners will count by 10 beginning at 70, 100, 90, 50, 140, and 260.
Fuel the Brain
Brain Boosters - Add Ten on a Number Line
Encourage learners to use pictures, numbers, or words to solve two-word problems in which they count by 10's using a number line. They tell the total number of items the child has in each problem by starting at a given number and adding...
Curated OER
The Past Tense -- Simple Past
A quick review of the past tense begins this learning exercise. It focuses on the simple past, and has a diagram to identify past actions in visual terms. Adding -ed or -ied is explained, and the past forms of to...
Savvas Learning
How Many Hundreds?
Mental math skills are really important to develop. Kids practice metal computation by first adding the hundreds then the tens and ones. There are nine addition and nine subtraction problems to solve. This attractive worksheet is...
Royal Society of Chemistry
The Treatment of Oil Spills—Microscale Chemistry
When oil spills happen, how is the oil cleaned up? Pupils of polymer science discover an amazing substance that turns oil into a solid during a microscale experiment. Individuals observe oil or paraffin before and after addition of the...
Royal Society of Chemistry
Green Plastics—Chemistry Outreach
How do green plastics reduce waste and environmental pollution? Budding scientists create and test a variety of compounds used in green plastics during an insightful experiment. Beginning with startling statistics and ending with...
US Department of Agriculture
Serving Up My Plate
Within three nutrition-themed, inquiry-based learning opportunities, pupils take notice of their eating habits; delve deep into the five food groups, gain experience in planning meals, participate in a taste test, and explore ads...
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
Exercises: Counting by 10s
You've found six problems sure to help your class understand adding tens and hundreds. First they fill in a chart by adding 10s, then they make 100 in different ways. They then use a hundred chart to complete three different patterns,...
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 worksheet. They fill in missing numbers on a number line to complete each sequence, adding or subtracting 10. There are two addition...
Curated OER
Adding and Subtracting Whole Hundreds
Kids count by 100 to determine a number in the thousands. They fill in the missing number by counting on 100 starting at the number 5000. They then add 100 to numbers like 2800 and 2600. There are 12 problems to solve.
Curated OER
Addition of Numbers (Under 100)
Here's some basic practice adding single and double-digit numbers in three different formats. First, learners complete two horizontal addition equations. Then, they find the sum for two vertical addition problems. Finally, scholars...
Curated OER
Mentally Add and Subtract 10 or 100
Get your mental mathletes in top form with this number sequence worksheet! They must add or subtract 10 from a number to complete these number lines, finding the missing three-digit numeral from a list of answers. Encourage verbal or...
Curated OER
How to Measure Time Worksheet
For this elapsed time worksheet, students read facts about time such as there are 60 seconds in 1 minute, and read tips for computing elapsed time both when going from am to pm, and within the morning or afternoon. They practice adding...
Curated OER
Make Ten Bundles
How many rolls until you get to 100? Young mathematicians will have a blast with this place value game, which has them rolling a die and placing a corresponding number of popsicle sticks in the "ones" column of their mat. Once they get...
Curated OER
Vertical Three Digit Place Value Addition 1
In order to add 3 digit numbers together and understand place value learners add to find the standard form. THere are 40 problems in which the hundreds, tens, and units are added to find a sum. Note: This format may confuse some children...
Curated OER
Add 9 to a 2-Digit Number
In this addition worksheet, students add 9 to a series of 2-digit numbers and increase given numbers by 9. An answer key and website reference are given.
Curated OER
Fractions and Percentages
In this fractions and percentages worksheet, students are given 4 mental test each with 8 problems including finding percentages, converting decimals and fractions to percentages, and adding, subtracting and multiplying fractions.
Curated OER
Add Nine to Two-Digit Number Year 3
In this finding the sums worksheet, 3rd graders add the numeral nine to two digit numbers using word problems, input forms, and number problems. Students solve 18 problems.
Curated OER
Two-Digit Plus One-Digit Addition (A)
In this math worksheet, young scholars solve 100 problems in which 2 digits are added to one digit numbers. Example: 44 + 9. Problems are written in a vertical format and are closely spaced.
Curated OER
Two-Digit Addition: With Regrouping (A)
This worksheet provides 100 opportunities for your class to practice adding two-digit numbers that require regrouping. An answer key is included.
Math Doctor
Chapter 5: Decimal Notation
Explore all things decimal in this thorough series of introduction activities. Including scripting for the teacher and detailed descriptions and examples, the plan begins by reviewing the basics of place value and writing fractions as...
Curated OER
Mentally Add Larger Numbers
Using what they know about adding 10s and 100s, learners attempt to mentally solve 18 addition problems. Each problem requires them to think of the nearest 10 or 100, add them together, then add the remaining units.