Determining Reasonable Answer Worksheet With Answer Key Page 15

ADVERTISEMENT

Name:
Determining Reasonable Answer
Determine if the answer shown is reasonable (yes) or not (no).
A n s w e r s
yes
Anything times 2 HAS to end in an even number (2,4,6,8,0).
Ex. 2 × 6 = 12
2 × 13 = 26
1.
no
Anything times 5 HAS to end in an either a 5 or a 0.
Ex. 5 × 4 = 20
5 × 15 = 75
2.
yes
3.
Anything times 10 HAS to end in a 0.
Ex. 10 × 7 = 70
10 × 16 = 160
yes
4.
1) 338 × 5 = 1,690
2) 259 × 10 = 2,597
no
5.
yes
6.
3) 533 × 5 = 2,665
4) 119 × 2 = 238
yes
7.
5) 10 × 245 = 2,459
6) 353 × 10 = 3,530
yes
8.
yes
7) 321 × 10 = 3,210
8) 856 × 5 = 4,280
9.
yes
10.
9) 2 × 437 = 874
10) 324 × 2 = 648
no
11.
11) 2 × 740 = 1,481
12) 2 × 641 = 1,282
yes
12.
no
13.
13) 5 × 191 = 957
14) 539 × 10 = 5,390
yes
14.
15) 2 × 900 = 1,801
16) 522 × 2 = 1,045
no
15.
no
16.
17) 654 × 2 = 1,309
18) 940 × 5 = 4,703
no
17.
19) 835 × 5 = 4,176
20) 100 × 5 = 504
no
18.
no
19.
no
20.
1-10 95 90 85 80 75 70 65 60 55 50
8
Math
11-20 45 40 35 30 25 20 15 10 5
0

ADVERTISEMENT

00 votes

Related Articles

Related forms

Related Categories

Parent category: Education