Mental Math Add or Subtract 10 or 100
Description: Online Worksheet for CCSS.Math.Content.2.NBT.B.8 Mentally add 10 or 100 to a given number 100-900, and mentally subtract 10 or 100 from a given number 100-900.
Tags: CCSS.Math.Content.2.NBT.B.8 2nd Grade, 2nd grade math, Addition, Subtraction





On Monday, the bakery made 150 pretzels. If they decide to bake an additional 100 on Tuesday, how many pretzels would the bakery have in total?
There are 200 cookies in the bakery. If they sold 10, how many cookies are left in the bakery?
The bakery started with 500 bread loaves. If they baked 100 more, how many would they have in total?
The bakery made 800 donuts for a big event. If they had to take 10 back, how many donuts are they left with?
The bakery has 300 rolls. If they decided to make 100 more, how many rolls would they have?
If the bakery starts with 700 cakes and they sell 100, how many cakes do they have left?
The bakery made 600 smores for a camping event. If they made another 10, how many smores would they have altogether?
The bakery has 400 marshmallows. If they decide to make 100 more, how many marshmallows would they have in total?
If the bakery baked 900 loaves of bread and sold 100, how many loaves of bread are left?
The bakery made 100 doughnuts for the day. If they decide to bake another 10, how many doughnuts would the bakery have in total?