## Number & Operations in Base 10

## Addition & Subtraction

## More Than One Operation

## Multiplication & Division

Base 10 Fun(Virtual manipulatives activity for learning place value, addition & subtraction) |
Base Ten(Make the number under the mat by dragging manipulatives onto the mat) |
Count by 2s(Drag & drop boxes into the proper order counting by 2s) |
Count by 5s(Drag & drop boxes into the proper order counting by 5s) |

Critter Junction(Practice counting 1s, 10s & 100s) |
Dottie Double at the Pop Awards(Help Dottie to keep the competition on track and to find the saboteur) |
Estimation Valley Golf(Choose a character then a course. Read the question and estimate the best answer) |
Form-O-Rama(Read the number then click on the answer that is in standard form) |

Fruit Splat Place Value(The question is on your moving mouse so you need to click the fruit with the correct answer) |
Fruit Splat Place ValueExpanded Form (Click the moving fruit with the correct answer) |
Fruit Splat Skip Count(Start with 2s, 5s or 10s) |
Glowla's Estimation Contraption(The machine will show you a bunch of numbers so type in an estimate of what those numbers would add up to) |

Grouping & Grazing(Help the alien spaceship move cows into corrals by counting, adding, and subtracting) |
Guess the Number(A classic estimation & halving game) |
Hockey Score(Practice your place value skills) |
Lifeguard(Rescue the struggling swimmers. Read how many tens & ones on the radar screen before you throw a life-line) |

Molly's More or Less Quest(Word problems with manipulatives to practice comparing more and less) |
Mystery Numbers(Read the question then click & drag the numbers into their proper place value positions) |
Number Place Value Inca Temple@ e-Learning (Help Cava count the blocks & arrange them properly) |
Numbers to 1000(Click Start to begin, then type how many hundreds, tens & ones you see, then click Check) |

Shark Numbers(Count the tens & ones then click on the correct bubble) |
The Greatest Game Ever(Beat the computer by making a 3-digit number with a greater value by choosing the place for each digit) |
The Number System(Make a number by dragging the digits in the right places in the number machine) |
Understanding Rounding(14-page tutorial demonstrating rounding of numbers) |

Page updated July 20, 2017