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 = ______
35 − 10 = ______
20 + 20 = ______
6 × 10 = ______
30 + 20 = ______
63 − 10 = ______
53 + 10 = ______
56 + 10 = ______
96 − 10 = ______
69 − 10 = ______
45 − 10 = ______
31 + 10 = ______
4 × 10 = ______
77 + 20 = ______
9 × 10 = ______
5 × 10 = ______
72 + 20 = ______
1 × 10 = ______
24 − 10 = ______
86 + 10 = ______
