Add 99 to a multiple of 10
for 4th grade
Add 99 to a number by adding 100 and then subtracting 1
Home / 4th grade / Add + Subtract / Add 79, 89, 99 / Add 99 to a multiple of 10
Below is a table showing the first 8 question answer pairs for the topic "Add 99 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 99 to a multiple of 10" is in the category Add + Subtract for 4th grade (ages 9 to 10).
1 / 8
Adding 99 to 20 by adding 100 and then subtracting 1 gives 119
2 / 8
Adding 99 to 40 by adding 100 and then subtracting 1 gives 139
3 / 8
Adding 99 to 90 by adding 100 and then subtracting 1 gives 189
4 / 8
Adding 99 to 130 by adding 100 and then subtracting 1 gives 229
5 / 8
Adding 99 to 290 by adding 100 and then subtracting 1 gives 389
6 / 8
Adding 99 to 340 by adding 100 and then subtracting 1 gives 439
7 / 8
Adding 99 to 620 by adding 100 and then subtracting 1 gives 719
8 / 8
Adding 99 to 790 by adding 100 and then subtracting 1 gives 889
Revise 'Add 99 to a multiple of 10' with one of our games for 4th grade
Home / 4th grade / Add + Subtract / Add 79, 89, 99 / Add 99 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 *