Name______Date ______
Round each number to the nearest whole number. Then find the difference.
1) 3.4 – 1.7 / 2) 45.8– 22.2 / 3) 19.3 – 6.7 / 4) 78.5 – 53.75) 64.6– 42.4 / 6) 23.1– 0.6 / 7) 31.7– 17.2 / 8) 54.8 – 11.9
9)Mrs. Schorn has a 2.7 karat diamond ring. Mrs. Burgess has a 1.2 karat diamond ring. Roughly how much bigger is Mrs. Schorn’s ring than Mrs. Burgess’s ring? / 10)Felipe lives 14.5 miles from his mother. He lives 6.6 miles from his brother. Approximately how much further does Felipe live from his mother than from his brother?
11)Michael finished the race in 23.4 seconds. Kevin finished the race in 25.8 seconds. About how many more seconds did it take Kevin to finish than Michael? / 12)Jasmine can hold her breath for 39.3 seconds. Kendria can hold her breath for 45.4 seconds. About how much longer can Kendria hold her breath than Jasmine?
Name______Date ______
Round each number to the nearest whole number. Then find the difference.
1)17.3– 2.2 / 2) 89.3 – 31.5 / 3) 56.4 – 44.7 / 4) 11.8 – 8.95) 63.8– 51.7 / 6) 12.5 – 5.8 / 7) 76.9 – 52.3 / 8) 5.1 – 0.9
9)Catherine can read 100 words in 48.4 seconds. Keith can read 100 words in 53.9 seconds. About how much longer does it take Keith to read 100 words than it takes Catherine? / 10)Jordan lives 2.9 miles from Ravens Stadium. He lives 0.6 miles from PattersonPark. Roughly how much further is Ravens Stadium from Jordan’s house than PattersonPark?
11) There are 33.8 ounces in a liter of soda. There are 12.2 ounces in a can of soda. Approximately how many more ounces of soda are there in a liter than in a can? / 12)Facundo’s dog weighs 31.6 pounds. Roberto’s dog weighs 46.1 pounds. About how much more does Roberto’s dog weigh than Facundo’s dog?
Name______Date ______
Round each number to the nearest whole number. Then find the difference.
1)64.7– 43.2 / 2)36.3 – 32.6 / 3)18.5 – 12.9 / 4) 13.1 – 7.65) 45.5– 22.4 / 6) 25.6– 17.9 / 7) 57.9 – 43.5 / 8) 9.1 – 0.7
9)Beth weighed 9.3 pounds as a baby. Heather weighed 6.5 pounds as a baby. About how many more pounds did Beth weigh than Heather as a baby? / 10)Anae lives 8.3 miles from the WhiteMarshTownCenter. She lives 14.6 miles from the TowsonTownCenter. Approximately how much further does Anae live from the TowsonTownCenter than the WhiteMarshTownCenter?
11)Devonte’s mom filled her gas tank with 12.4 gallons of gas on Tuesday. One week later, she had 4.7 gallons remaining in her tank. About how many gallons of gas did Devonte’s mother use during the week? / 12)Kywon can hold his breath for 52.1 seconds. Lizet can hold her breath for 48.9 seconds. Roughly how much longer can Kywon hold his breath than Lizet?