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
12 + 10 = ______
64 − 10 = ______
6 × 10 = ______
29 + 20 = ______
67 + 20 = ______
41 − 10 = ______
38 − 10 = ______
27 − 10 = ______
87 + 20 = ______
42 + 20 = ______
2 × 10 = ______
32 + 10 = ______
55 + 20 = ______
52 + 10 = ______
18 + 10 = ______
87 − 10 = ______
58 − 10 = ______
22 + 10 = ______
62 + 20 = ______
65 − 10 = ______
