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
69 + 10 = ______
8 × 10 = ______
53 − 10 = ______
11 + 20 = ______
16 + 10 = ______
83 + 10 = ______
18 + 20 = ______
62 + 20 = ______
1 × 10 = ______
35 − 10 = ______
63 − 10 = ______
97 − 10 = ______
87 + 10 = ______
3 × 10 = ______
12 + 20 = ______
55 − 10 = ______
69 + 20 = ______
44 + 20 = ______
45 + 10 = ______
42 + 10 = ______
