Addition
20 + 10 =
30
45-10 =
35
What number is in the tens place?
48
4
45 _ 68
45 < 68
What comes next?
5, 10, 15, 20, 25, 30, 35, 40,
45
35 + 64 =
99
58-46=
12
What place is the 6 in?
1,654
hundreds
500 _ 459
500 > 459
What comes next?
105, 110, 115, 120, 125,
130
68 + 29 =
97
287-143=
144
Write the number in standard form: six thousand, eight hundred, forty-five
6,845
3,001 _ 3,100
3,001 < 3,100
What comes next?
1,100, 1,200, 1,300, 1,400,
1,500
154 + 133 =
287
48-39 =
9
Write the number in standard form.
30,000 + 4,000 +100 +20 +3
34,123
True or False.
4,098 > 3,900
True
1,325, 1,330, 1,335, 1,340,
1,345
458 + 329 =
787
352-199=
153
Write the number in expanded form.
234,875
200,000 + 30,000 + 4,000 + 800 +70 +5
True or False.
6,789 < 6,788
False
1,220, 1,240, 1,260, 1,280
1,300