Carol says that
83
+
96
+
74
is greater than 300.
Is Carol correct? Why or why not?
Use the drop-down menus to show and explain your answer.
Choose...
each addend is
Choose...
than 100, so the sum must be
Choose...
than 300.
Choose "Each addend is" and "greater than 100, so the sum must be" to show that Carol is correct.
Each addend in the expression is greater than 100, so the sum must be greater than 300. Therefore, Carol is correct.
Follow the steps to find
782
−
155
.
Drag the numbers to complete the equations.
3501002
782
−
=
682
682
−
=
632
632
−
=
630
630
−
=
627
The completed equations are:
782 - 150 = 632
632 - 20 = 612
612 - 10 = 602
602 - 5 = 597
Therefore, 782 - 155 = 597.