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
46 + 20 = ______
6 × 10 = ______
98 − 10 = ______
89 + 10 = ______
79 − 10 = ______
23 − 10 = ______
40 + 20 = ______
50 − 10 = ______
74 + 20 = ______
88 − 10 = ______
11 + 10 = ______
9 × 10 = ______
3 × 10 = ______
44 − 10 = ______
45 + 10 = ______
18 + 10 = ______
78 − 10 = ______
70 + 10 = ______
87 − 10 = ______
67 + 10 = ______
