Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
16 + 10 = ______
2 × 10 = ______
21 − 10 = ______
75 + 20 = ______
7 × 10 = ______
70 + 20 = ______
44 + 20 = ______
44 + 10 = ______
83 + 20 = ______
27 + 10 = ______
24 + 10 = ______
48 + 20 = ______
5 × 10 = ______
6 × 10 = ______
65 − 10 = ______
13 + 20 = ______
80 − 10 = ______
44 − 10 = ______
31 − 10 = ______
60 + 10 = ______
