Add 81 to a multiple of 10
for 4th grade
Add 81 to a number by adding 80 and then adding 1 more
Home / 4th grade / Add + Subtract / Add 71, 81, 91 / Add 81 to a multiple of 10
Below is a table showing the first 8 question answer pairs for the topic "Add 81 to a multiple of 10" as used in the lessons for this topic. Our games and tests for the topic use these 8 items plus 20 additional question answer pairs.
The topic "Add 81 to a multiple of 10" is in the category Add + Subtract for 4th grade (ages 9 to 10).
1 / 8
Adding 81 to 20 by adding 80 and then adding 1 more gives 101
2 / 8
Adding 81 to 50 by adding 80 and then adding 1 more gives 131
3 / 8
Adding 81 to 90 by adding 80 and then adding 1 more gives 171
4 / 8
Adding 81 to 130 by adding 80 and then adding 1 more gives 211
5 / 8
Adding 81 to 290 by adding 80 and then adding 1 more gives 371
6 / 8
Adding 81 to 350 by adding 80 and then adding 1 more gives 431
7 / 8
Adding 81 to 640 by adding 80 and then adding 1 more gives 721
8 / 8
Adding 81 to 770 by adding 80 and then adding 1 more gives 851
Revise 'Add 81 to a multiple of 10' with one of our games for 4th grade
Home / 4th grade / Add + Subtract / Add 71, 81, 91 / Add 81 to a multiple of 10
Each of our math topics for elementary are made up of between 6 and 20 question and answer pairs (both the written form and a robot voice speaking those questions and answers). Each topic can be used with all the activities on the site.
Counting * Comparing numbers * Pattern * Place value * Addition * Subtraction * Add + Subtract * Multiplication * Division * Multiply + Divide * Fractions * Decimals * Percentages * Measurements * Shapes * Position + Direction * Statistics * Algebra *