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
88 + 10 = ______
19 + 10 = ______
9 × 10 = ______
75 − 10 = ______
55 − 10 = ______
3 × 10 = ______
33 − 10 = ______
4 × 10 = ______
2 × 10 = ______
14 + 10 = ______
61 + 20 = ______
51 + 20 = ______
22 + 10 = ______
47 + 20 = ______
69 + 20 = ______
8 × 10 = ______
30 + 10 = ______
71 + 20 = ______
6 × 10 = ______
93 − 10 = ______
