3A · Chapter 2 · Practice
Practice B
Attempt independently, then review the full reasoning in the answer key.
Attempt independently, then review the full reasoning in the answer key. No name, account, or answer is transmitted to any server.
Assessment · 15 questions
Problems
Try the questions first. The complete answer key is provided separately to parents.
Check your work: Finish the problems first, then ask a parent or tutor to review them with the separate answer-key copy.
- A1
Calculate 2,003 − 98 by using a nearby hundred.
- A2
Calculate 2,129 + 199 by using a nearby hundred.
- A3
Calculate 2,255 − 301 by using a nearby hundred.
- A4
Two collections contain 200 items altogether. One has 10 more than the other. How many are in EACH collection?
- A5
Two collections contain 240 items altogether. One has 24 more than the other. How many are in EACH collection?
- A6
Two collections contain 90 items altogether. One has 38 more than the other. How many are in EACH collection?
- A7
A school library has 320 books. 110 are on the front shelf. How many are elsewhere?
- A8
A school library has 361 books. 127 are on the front shelf. How many are elsewhere?
- A9
A school library has 402 books. 144 are on the front shelf. How many are elsewhere?
- A10
Leo collected 245 stamps. Mina collected 30 more than Leo. How many does Mina have?
- A11
Leo collected 276 stamps. Mina collected 39 more than Leo. How many does Mina have?
- A12
Leo collected 307 stamps. Mina collected 48 more than Leo. How many does Mina have?
- A13
A shop begins with 310 pencils, receives 80, then sells 10. How many pencils remain?
- A14
A shop begins with 367 pencils, receives 93, then sells 27. How many pencils remain?
- A15
A shop begins with 424 pencils, receives 106, then sells 44. How many pencils remain?