sixteen; 16 ( six ones added to one ten.); senventeen; 17 ( seven ones added to one ten.); eighteen; 18 ( eight ones added to one ten.); nineteen, 19 ( nine ones added to one ten.);
The successor to 19 is called twenty and is denoted by 20. (see, the value is zero ones added to two tens).
The names of subsequent numbers and their notations are twenty one, 21 ( one one added to two tens.); twenty two, 22 ( two ones added to two tens.); twenty three, 23 ( three ones added to two tens.); twenty four, 24 ( four ones added to two tens.); twenty five, 25 ( five ones added to two tens.); twenty six, 26 ( six ones added to two tens.); twenty seven, 27 ( seven ones added to two tens.); twenty eight, 28 ( eight ones added to two tens.); twenty nine, 29 ( nine ones added to two tens.);
The successor to 29 is called thirty and is denoted by 30. (see, the value is zero ones added to three tens.).
The names of subsequent numbers and their notations are similar to the set given above after 20. They are
thirty one, 31 ( one one added to three tens.); thirty two, 32 ( two ones added to three tens.); thirty three, 33 ( three ones added to three tens.); thirty four, 34 ( four ones added to three tens.); thirty five, 35 ( five ones added to three tens.); thirty six, 36 ( six ones added to three tens.); thirty seven, 37 ( seven ones added to three tens.); thirty eight, 38 ( eight ones added to three tens.); thirty nine, 39 ( nine ones added to three tens.);
The next set is, forty denoted by 40 and then forty one, 41 to forty nine, 49.
The other sets are fifty denoted by 50 and then fifty one, 51 to fifty nine, 59. sixty denoted by 60 and then sixty one, 61 to fifty nine, 69. seventy denoted by 70 and then seventy one, 71 to seventy nine, 79. eighty denoted by 80 and then eighty one, 81 to eighty nine, 89. ninety denoted by 90 and then ninety one, 91 to ninety nine, 99.
Research-based personalized Math Help tutoring program : : Two Digit Numbers
Here is a resource for Solid Foundation in Math Fundamentals from Middle thru High School. You can check your self by the
There is an exclusive, Parent Information Page provides YOU with detailed reports of your child’s progress so you can monitor your child’s success and give them encouragement. These Reports include
Time spent using the program
Personalized remediation curriculum designed for your child
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In the above example, the value of 96 = 9 tens + 6 ones = 90 + 6 = 96 It is written as ninety six.
The numbers discussed so far are Single Digit Numbers, (0 to 9) and two digit numbers (10 to 99). Let us have an exercise on these one and two digit numbers.
Progressive Learning of Math : Two Digit Numbers
Recently, I have found a series of math curricula (Both Hard Copy and Digital Copy) developed by a Lady Teacher who taught everyone from Pre-K students to doctoral students and who is a Ph.D. in Mathematics Education.
This series is very different and advantageous over many of the traditional books available. These give students tools that other books do not. Other books just give practice. These teach students “tricks” and new ways to think.
These build a student’s new knowledge of concepts from their existing knowledge. These provide many pages of practice that gradually increases in difficulty and provide constant review.
These also provide teachers and parents with lessons on how to work with the child on the concepts.
The series is low to reasonably priced and include
Learning/Teaching Math Can Be Fun : Two digit Numbers
Here is a collection of kids math games and fun math activities for the class room or for the home, to make math exciting and easy to learn.
They help you
* To save you time and money to be spent on resources, games and books.
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* To cater for all different ability levels and cater for different learning styles.
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* The math skills include comparing numbers upto 5 digits, Place value, Addition, Subtraction, Multiplication, Division, Fractions, Percentages etc.
This Collection of Fun Math Games are electronic books (e-books) that are downloaded to your computer in a flash. You can start printing games right away. You get to print only what you want and as many copies as you need.