Curated OER
Using Groups of Ten to Solve Problems
Upper graders solve math problems involving multiplication using specific strategies. They will use base-ten blocks, hundreds charts, and number lines to solve multiplication problems. Then they will practice several of the strategies...
Curated OER
Base Ten Blocks-Counting Flats
In this base ten block counting worksheet, students determine the value of sets of flats, each flat having a value of 100, 4 sets of flats total.
Curated OER
Base Ten Blocks - Rods and Flats (B)
In this using base ten blocks worksheet, students trade flats for groups of rods to solve the problems. Students solve 6 problems.
Curated OER
Base Ten Blocks—Representing Numbers (D)
In this counting base ten blocks learning exercise, students read a brief instructional guide and fill in the blanks in 4 statements pertaining to the units pictured in each of the 4 problems.
Curated OER
Tens and Units
Images of base ten blocks are used to reinforce counting past 10. Learners will count along, adding units to each 10 as they go from 10 to 30. Each number is shown on a 100 block, as blocks of 10s and 1s, and in numeric form as tens and...
Curated OER
Base Ten Blocks-Counting Units
In this base ten blocks counting worksheet, students count how many units are in given groups of blocks, 8 sets of blocks total.
Curated OER
Add Hundreds
Learners use the basic facts in 6 word problems to help them add hundreds. They use base ten blocks to model and assist them with their addition.
Curated OER
Hundreds, Tens, Ones
In this place values worksheet, students solve the six word problems using place value numbers in the ones, tens, and hundreds. Students use base ten blocks and square unit blocks to help them solve the problems.
Curated OER
Base Ten Blocks—Counting Flats (C)
In this counting flats and blocks practice worksheet, students use their problem solving skills to find the values of 4 sets of flats.
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Base Ten Blocks—Counting Flats (E)
For this counting flats and blocks practice worksheet, students use their problem solving skills to find the values of 4 sets of flats.
Curated OER
Planetary Place Value
Third graders explore place value to the ten thousands place. This incredibly thorough, 24-page lesson has learners construct, order, and compare numbers to 9,999. This three-day lesson includes reteaching and extension activities...
Curated OER
Base Ten Blocks - Rods and Flats (D)
In this trading base ten rods and flats worksheet, students view pictures of groups of rods and trade them for flats with remainders. Students solve 4 problems.
Curated OER
Base Ten Blocks - Rods and Flats (E)
In this trading base ten rods and flats instructional activity, students trade flats for each group of rods with remainders. Students solve 4 problems.
National Security Agency
Expanding Place Value
Learners explore place value. This incredibly thorough and valuable mathematics instructional activity, has students make a number wheel to assist in the completion of a Place Value worksheet. Students use manipulatives and a place value...
Curated OER
Hundreds, Tens, and Ones - Find the Secret Number
The class assess images of blocks to determine place value. They are given 6 images to assess, they write down the number of hundreds, tens, and ones shown, then compose the number they represent. The whole number each set of blocks...
Curated OER
Base Ten Blocks—Units and Rods (D)
In this counting units and rods worksheet, learners read a brief instructional guide and fill in the blanks in 6 statements pertaining to the units pictured in each of the 6 problems.
Curated OER
Base Ten Blocks—Units and Rods (C)
In this counting units and rods worksheet, students read a brief instructional guide and fill in the blanks in 6 statements pertaining to the units pictured in each of the 6 problems.
Curated OER
Base Ten Blocks—Units and Rods (E)
In this counting units and rods instructional activity, students read a brief instructional guide and fill in the blanks in 6 statements pertaining to the units pictured in each of the 6 problems.
Illustrative Mathematics
Rounding to 50 or 500
In a six-problem learning activity, children are guided to solve word problems that involve rounding to the nearest ten and nearest hundred. A commentary and answer key provide different approaches that learners may take in solving the...
Curated OER
Building Numbers to 50
Students explore how to represent numbers using cubes and draw them accordingly. They discuss place value and the base ten number system using manipulatives. Students roll a dice and take that many blocks. They write down their resulting...
Primary Junction
Adding Tens
Build on your learners' confidence in quick addition as they discover strategies to add tens to two-digit numbers. After reviewing counting by 10's, they discuss tactics to add multiples of 10 to other numbers. They visualize how to...
Illustrative Mathematics
Three Composing/Decomposing Problems
Practice composing and decomposing numbers in base-ten using three word problems. Each problem presents a different scenario requiring learners to explain their thinking, find the number of ones, and find out different ways to make a...
Curated OER
Today's Number
Using the number of days they have been in school, learners practice fining sums by adding ten, subtracting ten, and determining even and odd numbers. They write equations and build numbers with the fewest number of base ten blocks.
Curated OER
Base Ten Blocks—Rods and Flats (C)
In this base 10 blocks math worksheet, students use their problem solving skills to respond to 4 questions regarding rods and flats.