Addition
40+19=
59
367-122=
245
In the number 843, which digit is in the tens place?
4
Round 21 to the nearest 10.
20
2x3=
6
55+65=
120
473-262=
211
In the number 357, which digit is in the ones place?
7
Round 78 to the nearest 10.
80
3x5=
15
300+45=
345
389-273=
116
When you are adding or subtracting what place value do you start with?
THE ONES PLACE!
Round 36 to the nearest 10.
40
2x10=
20
426+534=
960
921-485=
436
In the number 638, the number 3 repesents how much?
30 (3 tens)
Round 45 to the nearest 10.
50
4x6=
24
299+111=
410
734-569=
165
783
round 234 to the nearest 10.
230
7x3=
21