Adding Without Regrouping
27 + 62
89
47 + 86
133
How could you solve 7 + 5 by making a 10?
Answers vary (7+3 or 5+5)
Eric sold 1,950 boxes of muffins during the school fair. Clara sold 1,520 more boxes of muffins than Eric. How many boxes of muffins did Clara sell?
3,470
312 + 65
377
539 + 186
725
How could you solve 6 + 9 by making a 10?
Answers vary (6+4 or 9 +1)
Eric sold 1,240 boxes of muffins during the school fair. Clara sold 1,730 more boxes of muffins than Eric. How many boxes of muffins did they sell in all?
4,210
905 + 54
959
9,008 + 575
What is an efficient way to add the following set of numbers: 4 + 8 + 2?
Answers vary. 8+2 = 10, then 10+4 = 14.
Tiana bough a sandwich for $17.99 and a glass of juice for $5.60. She spent another $10.25 on a waffle. How much did she spend in all?
$33.84
5,823 + 176
5999
7,685 + 1,883
9,568
Complete the sum in four different ways:
__ + 7 + __ = 10
1 + 7 + 2
2 + 7 + 1
0 + 7 + 3
3 + 7 + 0
Tiana bough a sandwich for $7.99. Her sandwich was $4.15 less than her smoothie. How much did her smoothie cost?
$12.14
4,582 + 3,205
7,787
5,846 + 1,999
7,845
True or False (and explain your thinking):
The sum of two odd numbers is always even
True - (answers vary - they will all always have pairs because the odd one out in each original number with partner with one another)
Tiana bought a sandwich for $7.99. Her sandwich was $4.15 less than her smoothie. How much did her meal cost?
$20.13