Suitable for Grades: 5th Grade, 6th Grade
CCSS: 5.NBT.B.7, 6.NS.B.3
CCSS Description: CCSS Description: Add, subtract, multiply, and divide decimals to hundredths, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used.
Fluently add, subtract, multiply, and divide multi‑digit decimals using the standard algorithm for each operation.
This ten minute challenge makes a great task at the start of a lesson or something to end a unit on decimal operations. Learners are asked to answer 30 questions involving mixed operations as fast as they can. Can they complete them all within ten minutes? They will need to be careful to use the correct operation. Will they manage the final question involving an exponent?