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Earn +20 ptsQ: How can estimating help you add two digit numbers?
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How can estimating help you add two digit of number?
It is easier to simply add two one-digit numbers than to mess about with estimation!
How does knowing how to compare four digit numbers help you to compare five digit numbers?
they all are digit numbers
How do you add 3 digit numbers?
From right to left.
How many two-digit numbers have digits that add up to 10?
To make the list of two-digit numbers with digits that add up to 10, first write the pairs of single-digit integers that add up to 10. They are (1,9), (2,8), (3,7), (4,6), (5,5). Then recognize that each of these pairs of numbers, except 5, can be combined in two different ways to make two-digit numbers that satisfy the problem. 19 and 91 28 and 82 37 and 73 46 and 64 55 So there are nine two-digit numbers with digits that add up to 10.
Can you add two 4 digit numbers and get a sum greater than 20000?
No.
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