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
51 − 10 = ______
76 + 20 = ______
9 × 10 = ______
46 − 10 = ______
81 + 10 = ______
48 − 10 = ______
62 + 10 = ______
12 + 10 = ______
33 − 10 = ______
3 × 10 = ______
33 + 20 = ______
6 × 10 = ______
55 + 20 = ______
32 + 10 = ______
13 + 20 = ______
51 + 10 = ______
17 + 20 = ______
77 − 10 = ______
32 − 10 = ______
29 − 10 = ______
