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
51 + 20 = ______
7 × 10 = ______
8 × 10 = ______
48 + 20 = ______
3 × 10 = ______
4 × 10 = ______
78 − 10 = ______
9 × 10 = ______
91 − 10 = ______
33 − 10 = ______
64 − 10 = ______
45 + 20 = ______
67 − 10 = ______
37 + 10 = ______
78 + 20 = ______
75 + 10 = ______
69 − 10 = ______
22 + 20 = ______
64 + 10 = ______
60 + 10 = ______
