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
14 + 10 = ______
70 + 10 = ______
25 − 10 = ______
24 − 10 = ______
29 + 20 = ______
4 × 10 = ______
33 + 10 = ______
59 + 20 = ______
87 − 10 = ______
69 − 10 = ______
50 + 10 = ______
60 + 10 = ______
90 − 10 = ______
6 × 10 = ______
22 − 10 = ______
2 × 10 = ______
8 × 10 = ______
67 + 20 = ______
69 + 10 = ______
7 × 10 = ______
