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
2 × 10 = ______
54 + 20 = ______
24 − 10 = ______
75 + 10 = ______
33 + 10 = ______
80 + 20 = ______
7 × 10 = ______
49 − 10 = ______
76 + 10 = ______
55 + 20 = ______
4 × 10 = ______
94 − 10 = ______
63 + 10 = ______
3 × 10 = ______
29 + 10 = ______
87 − 10 = ______
9 × 10 = ______
12 + 20 = ______
60 − 10 = ______
45 + 10 = ______
