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 + 20 = ______
93 − 10 = ______
15 + 20 = ______
30 + 10 = ______
66 + 10 = ______
58 + 20 = ______
7 × 10 = ______
9 × 10 = ______
52 + 20 = ______
70 − 10 = ______
8 × 10 = ______
63 + 10 = ______
6 × 10 = ______
65 + 10 = ______
30 − 10 = ______
59 − 10 = ______
28 + 20 = ______
3 × 10 = ______
77 + 10 = ______
37 − 10 = ______
