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
58 + 20 = ______
36 + 20 = ______
23 + 20 = ______
6 × 10 = ______
29 − 10 = ______
62 − 10 = ______
69 − 10 = ______
4 × 10 = ______
79 + 20 = ______
65 + 20 = ______
28 − 10 = ______
14 + 20 = ______
92 − 10 = ______
2 × 10 = ______
22 + 20 = ______
73 + 20 = ______
1 × 10 = ______
86 + 10 = ______
39 − 10 = ______
27 − 10 = ______
