Joel's 3rd Grade Math Units 1-3

arrays

100

8x9 put it in  a array.

8x9=72

200

6x7 put it in a array

6x7=42

300

15x5 put it in a arrays.

15x5=75

400

15x6 put it in a array

15x6=90

500

15x10 put it in a array

15x10=155

Multiplication

100

5x3=?

5x3=15

200

50x10=?

50x10=500

300

12x12=?

12x12=144

400

15x5=?

15x5=75

500

15x15=?

15x15=135

Adding

100

89+87=?

89+87=176

200

655+645=?

655+645=1,300

300

555+545=?

555+545=1,010

400

4,000+5,000=?

4,000+5,000=9,000

500

5,803+4,900

5,803+4,900=10,703

subtracting

100

50-14=?

50-14=36

200

67-45=?

67-45=22

300

55-34=?

55-34=21

400

555-44=?

555-44=511

500

5,600-550=?

5,600-550=5,050

which one is more

100

10004567,877 or 9,876544 ?

10004567,877 is right

200

567989467989780798 or 6478398765456789098

647398765456789098 is right

300

5555,57448384 or 767676767676767

7676767676767676 is right

400

5464,7575 or 766776767676

766776767676

500

67676767678989898 or 89,87686768676

67676767678989898 is right