A pet shelter had 637 animals. 284 were adopted. How many are left?
353 animals
Start at 473. What is 473 + 100?
573
Is 1/2 closer to 0 or 1?
Right in the middle — 1/2 is exactly halfway between 0 and 1
What is 6 × 8?
48 — double 6 is 12, double again is 24, double again is 48
The 4th grade read 812 pages. The 3rd grade read 569 pages. How many more pages did the 4th grade read?
243 more pages
Start at 749. What is 749 − 100?
649
Which is larger: 3/4 or 1/4?
3/4 — it has more parts out of the same whole
What is 7 × 9? Use the ×10 strategy.
7 × 10 = 70, then 70 − 7 = 63
A baker made some muffins in the morning. She baked 247 more in the afternoon. At the end of the day she had 731 muffins. How many did she make in the morning?
484 muffins
Start at 526. What is 526 + 110?
636
Place 1/3 on a number line from 0 to 1. Is it closer to 0 or 1?
Closer to 0 — 1/3 is about one-third of the way from 0 to 1
What is 60 × 9?
6 × 9 = 54, so 60 × 9 = 540
A movie theater sold 905 tickets over the weekend. On Saturday they sold 478. How many were sold on Sunday?
427 tickets
Is 487 closer to 400 or 500?
500 — 487 is only 13 away from 500
Which is larger: 2/3 or 1/3?
2/3 — same denominator, so compare numerators: 2 is greater than 1
What is 8 × 9?
8 × 10 = 80, then 80 − 8 = 72
A school collected 812 cans. Their goal was 1,000 cans. How many more cans do they need?
188 more cans
Is 318 closer to 300 or 400?
300 — 318 is only 18 away from 300
I ate 3/4 of a pizza. My friend ate 1/4. How much did we eat altogether?
4/4 = 1 whole pizza
What is 40 × 8?
4 × 8 = 32, so 40 × 8 = 320