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
25 + 10 = ______
22 − 10 = ______
44 − 10 = ______
5 × 10 = ______
3 × 10 = ______
22 + 20 = ______
46 + 20 = ______
83 + 10 = ______
9 × 10 = ______
63 + 20 = ______
59 + 20 = ______
12 + 10 = ______
38 + 10 = ______
6 × 10 = ______
60 − 10 = ______
21 + 10 = ______
24 − 10 = ______
14 + 20 = ______
67 − 10 = ______
39 + 10 = ______
