Estimate answer by rounding numbers to the nearest ten. Then find the exact answer. A welder uses 88 welding rods for his first job and 19 welding rods for a second job. How many more rods did he use for the first job?
A) 60 rods; 69 rods
B) 70 rods; 69 rods
C) 70 rods; 71 rods
D) 60 rods; 79 rods
Correct Answer:
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Q78: A hardware store sells chain in three-foot
Q79: Subtract: Q80: Write 45 + 306 + 7 + Q81: Simone has $220.00 with her. She goes Q82: A music CD costs $9.99. How much Q84: Estimate the sum by rounding to the Q85: Multiply: 237 × 702 Q86: Subtract: 1,536 - 1,232 Q87: Divide: 8,512 ÷ 28 Q88: Multiply: 403 × 27
A)17,064
B)166,374
C)166,437
D)170,640
E) none of the
A)306
B)1,304
C)304
D)308
A)340
B)34
C)3,004
D)304
E) none of the
A)10,881
B)10,161
C)1181
D)1161
E) none of the
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