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What is the deficiency of 78 from 80?
Find 67 x 5 using Halving
Add mentally from left to right: 46+27
Find 47 x 25 using Halving
Add mentally from left to right: 75 + 89
Divide 235 by 5
Add mentally from left to right: $44.88 + $37.45
How many digits does the number 48 have?
Add 17 + 42 + 23 + 9 by looking for numbers totaling 10
Find, using addition and subtraction: 44 + 49
Find, using addition and subtraction: 333 – 68
Find, using addition and subtraction: 1234 – 997
Which of these is a way to add 167? (More than one answer here)
Double mentally, from left to right: 48
Double mentally, from left to right: 678
Use doubling to multiply 36 by 4
Halve: 58
Halve: 924
Use halving to divide 176 by 4