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
9 × 10 = ______
6 × 10 = ______
8 × 10 = ______
69 + 10 = ______
85 − 10 = ______
53 − 10 = ______
35 + 20 = ______
97 − 10 = ______
74 + 10 = ______
20 + 10 = ______
89 + 10 = ______
1 × 10 = ______
25 + 10 = ______
69 − 10 = ______
48 + 20 = ______
49 + 20 = ______
3 × 10 = ______
24 + 20 = ______
83 + 10 = ______
44 + 10 = ______
