Addition
You buy 4 boxes of Kleenex for $1.79 each.
Estimate.
$8.00
67
70
457
500
$25.14 + $49.79 =
$75.00
You buy 6 frozen pizzas for 5.89 each.
Estimate.
$36.00
98
100
968
1,000
223 + 378 =
Estimate, then solve. Check for accuracy.
600
601, yes
4,378 - 3,204 =
Estimate, then subtract. Check for accuracy.
2,200
1,174
You buy 5 packs of Sour Punch Kids at $4.91 each.
Estimate the cost.
$25.00
234
230
2,481
2,500
3,871 + 5,709 =
Estimate, then add. Check for accuracy.
10,000
9580
97,102 - 72,965 =
Estimate, then solve. Check for accuracy.
24,000
24,137
You buy five Birthday cards for $1.15 each, three bags of candy for $4.89 each, and two 2-liter bottles of pop for $1.89 each.
Estimate your total.
$24.00
2,671
2,670
5,594
5,600
$278.01 + $67.89 =
Estimate, then add. Check for accuracy.
$350.00
$345.90
907,876 - 791,406 =
Estimate, then solve. Check for accuracy.
100,000
116,470
You buy three gallons of milk at $3.19 each and three dozen organic eggs at $3.79 each.
Estimate.
$21.00
45,389
45,390
23,801
23,800