rounding
34,765 nearest 100
34,800
What is the partial sum method in addition?
Breaking down numbers by their place values and adding them separately.
What does it mean to regroup in addition?
To carry over numbers from one column to the next when a column sums to more than ten.
Sarah has 123,456 marbles, and her friend gives her 234,567 more. How many marbles does she have now?
358,023 marbles
237,439 to the nearest ten thousand
240,000
Find the partial sums for 123,456 + 234,542.
100,000 + 200,000 = 300,000
20,000 + 30,000 = 50,000
3,000 + 4,000 = 7,000
400 + 500 = 900
50 + 40 = 90
6 + 2 = 8
357,998
Add 456,789 + 345,678 using regrouping. What is the answer?
802,467
34,659 + 2,356
37,015
23,976 to the nearest 10
23,980
How do you calculate the partial sums for 456,225 + 123,321?
400,000 +100,000 = 500,000
50,000 + 20,000 = 70,000
6,000 + 3,000 = 9,000
200 + 300 = 500
20 + 20 = 40
1+5 = 6
579,546
What place value do you regroup when adding 587,654 + 123,345?
If a factory produced 678,910 toys last month and 123,456 toys this month, how many more toys did they produce last month than this month?
555,454 more toys
9,867,863 nearest million
10,000,000
Show the partial sums for 678,110 + 121,456.
600,000 + 100,000 = 700,000
70,000 + 20,000 = 90,000
8,000 + 1,000 = 9,000
100 + 400 = 500
10 + 50 = 60
0 + 6 = 6
799,566
Solve 678,910 - 305,078 using regrouping.
373,832
596+656
1,254
467,653 to the nearest hundred thousand
Use the partial sum method to add 234,567 + 765,432. What is the total?
999,999
78,431 + 376
78,807
856,692 + 529
857,221