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 = ______
42 − 10 = ______
68 + 10 = ______
94 − 10 = ______
29 − 10 = ______
59 + 10 = ______
37 − 10 = ______
30 + 20 = ______
76 − 10 = ______
8 × 10 = ______
89 − 10 = ______
1 × 10 = ______
28 + 10 = ______
19 + 10 = ______
33 + 10 = ______
22 + 10 = ______
36 + 20 = ______
12 + 20 = ______
55 − 10 = ______
65 − 10 = ______
