When.com Web Search

  1. Ads

    related to: addition and subtraction problems 2nd grade

Search results

  1. Results From The WOW.Com Content Network
  2. Elementary arithmetic - Wikipedia

    en.wikipedia.org/wiki/Elementary_arithmetic

    A subtraction problem such as is solved by borrowing a 10 from the tens place to add to the ones place in order to facilitate the subtraction. Subtracting 9 from 6 involves borrowing a 10 from the tens place, making the problem into +. This is indicated by crossing out the 8, writing a 7 above it, and writing a 1 above the 6.

  3. Investigations in Numbers, Data, and Space - Wikipedia

    en.wikipedia.org/wiki/Investigations_in_Numbers...

    Investigations was developed between 1990 and 1998. It was just one of a number of reform mathematics curricula initially funded by a National Science Foundation grant. The goals of the project raised opposition to the curriculum from critics (both parents and mathematics teachers) who objected to the emphasis on conceptual learning instead of instruction in more recognized specific methods ...

  4. Tape diagram - Wikipedia

    en.wikipedia.org/wiki/Tape_diagram

    A tape diagram is a rectangular visual model resembling a piece of tape, that is used to assist with the calculation of ratios and addition, subtraction, and commonly multiplication. It is also known as a divided bar model, fraction strip, length model or strip diagram.

  5. Addition - Wikipedia

    en.wikipedia.org/wiki/Addition

    3 + 2 = 5 with apples, a popular choice in textbooks [1] Addition (usually signified by the plus symbol +) is one of the four basic operations of arithmetic, the other three being subtraction, multiplication and division. [2] The addition of two whole numbers results in the total amount or sum of those values combined. The example in the ...

  6. Math Blaster Jr. - Wikipedia

    en.wikipedia.org/wiki/Math_Blaster_Jr.

    The game sees the Blaster Pal characters head to the Plusto galaxy in outer space to solve maths problems. By solving addition and subtraction problems, they earn printable certificates. [3] The game contains several activities, puzzles, and songs. The game is intended to encourage "math readiness". [4]

  7. Arithmetic - Wikipedia

    en.wikipedia.org/wiki/Arithmetic

    Counting is a type of repeated addition in which the number 1 is continuously added. [46] Subtraction is the inverse of addition. In it, one number, known as the subtrahend, is taken away from another, known as the minuend. The result of this operation is called the difference. The symbol of subtraction is . [47]