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
85 − 10 = ______
59 + 10 = ______
3 × 10 = ______
17 + 10 = ______
21 + 10 = ______
2 × 10 = ______
27 + 10 = ______
1 × 10 = ______
58 − 10 = ______
6 × 10 = ______
61 − 10 = ______
29 + 20 = ______
37 − 10 = ______
28 − 10 = ______
17 + 20 = ______
55 + 20 = ______
9 × 10 = ______
42 + 20 = ______
52 − 10 = ______
85 + 20 = ______
