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
64 + 10 = ______
2 × 10 = ______
9 × 10 = ______
88 − 10 = ______
69 + 20 = ______
87 + 10 = ______
78 + 10 = ______
56 + 20 = ______
48 − 10 = ______
80 + 20 = ______
62 + 10 = ______
27 + 20 = ______
8 × 10 = ______
33 − 10 = ______
6 × 10 = ______
59 + 20 = ______
31 + 10 = ______
93 − 10 = ______
83 + 10 = ______
72 − 10 = ______
