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
45 − 10 = ______
33 − 10 = ______
59 + 20 = ______
33 + 10 = ______
3 × 10 = ______
28 − 10 = ______
34 + 20 = ______
39 + 20 = ______
49 − 10 = ______
51 − 10 = ______
62 − 10 = ______
52 + 10 = ______
4 × 10 = ______
19 + 20 = ______
51 + 20 = ______
77 + 10 = ______
26 + 20 = ______
51 + 10 = ______
98 − 10 = ______
1 × 10 = ______
