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
6 × 10 = ______
78 + 20 = ______
39 + 20 = ______
39 − 10 = ______
1 × 10 = ______
50 − 10 = ______
70 − 10 = ______
55 + 10 = ______
79 + 20 = ______
64 − 10 = ______
41 + 20 = ______
4 × 10 = ______
74 + 10 = ______
49 − 10 = ______
3 × 10 = ______
74 − 10 = ______
67 + 10 = ______
20 + 10 = ______
5 × 10 = ______
22 − 10 = ______
