What is the Value?
Which of the following expressions represent 450?
400+50
Start at 305. Decrease by 10 each time.
What are the first four terms in the pattern?
305, 295, 285, 275
Solve
99 + 49=
148
What 3-digit number is made using 3 hundreds, 16 tens and 9 ones?
469
Donna got a new bag of 200 marbles. She now has 638 marbles. How many did she start with?
438 marbles.
Which of the following expressions represent 254?
200+50+4
Start at 482. Decrease by 5 each time.
What are the first four terms in the pattern?
482, 477, 472, 467
Solve
91-48
43
What 3-digit number is made using 1 hundred, 12 tens, and 5 ones?
225
(12 tens = 120; 1 hundred = 100; 100 + 120 + 5 = 225)
Three items have been bought for the baseball season: a ball glove for $59, a bat for $35 and cleats for $26. How much would it be for the three items?
120$ all together.
Which of the following expressions represent 105?
100+5
The pattern rule is: Start at 536. Decrease by 3 each time. What are the first four terms in the pattern?
536, 533, 530, 527
Solve
58 + 41=
99
58 is 50 + 8, and 41 is 40 + 1.
Then add 50 + 40 = 90 and 8 + 1 = 9.
Now add 90 + 9 = 99.
What 3-digit number is made using 2 hundreds, 14 tens, and 6 ones?
346
(14 tens = 140; 2 hundreds = 200; 200 + 140 + 6 = 346)
There were 75 chairs in the hall. After a party, 32 were put away.
How many chairs are still in the hall?
There are 43 chairs still in the hall.
Which of the following expressions represent 866?
800+60+6
Start at 600. Decrease by 25 each time.
What are the first four terms in the pattern?
600, 575, 550, 525
Solve
75 + 28=
103
make a friendly number.
Take 2 from 75 to make 28 into 30.
Now it's 73 + 30 = 103.
What number is made using 4 hundreds, 20 tens, and 0 ones?
600
(20 tens = 200; 4 hundreds = 400; 400 + 200 + 0 = 600)
A bus had 92 passengers. At the next stop, 46 got off.
How many passengers are still on the bus?
There are 46 passengers still on the bus.
Which of the following expressions represent 1234?
1000+200+30+4
Start at 420. Decrease by 4 each time.
What are the first four terms in the pattern?
420, 416, 412, 408
Solve
86 – 39=
47
round 39 up to 40 to make it easier.
86 – 40 = 46. Then add 1 back because we took away one extra.
46 + 1 = 47.
What number is made using 6 hundreds, 11 tens, and 3 ones?
713
(11 tens = 110; 6 hundreds = 600; 600 + 110 + 3 = 713)
A classroom has 38 pencils and the teacher adds 24 more.
How many pencils are there now?
There are 62 pencils now.